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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" article-type="research-article" dtd-version="1.4" xml:lang="en">
  <front>
    <journal-meta>
      <journal-id journal-id-type="publisher-id">jamp</journal-id>
      <journal-title-group>
        <journal-title>Journal of Applied Mathematics and Physics</journal-title>
      </journal-title-group>
      <issn pub-type="epub">2327-4379</issn>
      <issn pub-type="ppub">2327-4352</issn>
      <publisher>
        <publisher-name>Scientific Research Publishing</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="doi">10.4236/jamp.2026.149163</article-id>
      <article-id pub-id-type="publisher-id">jamp-153666</article-id>
      <article-categories>
        <subj-group>
          <subject>Article</subject>
        </subj-group>
        <subj-group>
          <subject>Physics</subject>
          <subject>Mathematics</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title>The Structural Constant s0 of All Atoms as a Universal Physical Constant</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <name name-style="western">
            <surname>Perkovac</surname>
            <given-names>Milan</given-names>
          </name>
          <xref ref-type="aff" rid="aff1">1</xref>
        </contrib>
      </contrib-group>
      <aff id="aff1"><label>1</label> Independent Researcher, Zagreb, Croatia </aff>
      <author-notes>
        <fn fn-type="conflict" id="fn-conflict">
          <p>The author declares no conflicts of interest regarding the publication of this paper.</p>
        </fn>
      </author-notes>
      <pub-date pub-type="epub">
        <day>01</day>
        <month>09</month>
        <year>2026</year>
      </pub-date>
      <pub-date pub-type="collection">
        <month>09</month>
        <year>2026</year>
      </pub-date>
      <volume>14</volume>
      <issue>09</issue>
      <fpage>3293</fpage>
      <lpage>3300</lpage>
      <history>
        <date date-type="received">
          <day>09</day>
          <month>07</month>
          <year>2026</year>
        </date>
        <date date-type="accepted">
          <day>01</day>
          <month>09</month>
          <year>2026</year>
        </date>
        <date date-type="published">
          <day>04</day>
          <month>09</month>
          <year>2026</year>
        </date>
      </history>
      <permissions>
        <copyright-statement>© 2026 by the authors and Scientific Research Publishing Inc.</copyright-statement>
        <copyright-year>2026</copyright-year>
        <license license-type="open-access">
          <license-p> This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license ( <ext-link ext-link-type="uri" xlink:href="https://creativecommons.org/licenses/by/4.0/">https://creativecommons.org/licenses/by/4.0/</ext-link> ). </license-p>
        </license>
      </permissions>
      <self-uri content-type="doi" xlink:href="https://doi.org/10.4236/jamp.2026.149163">https://doi.org/10.4236/jamp.2026.149163</self-uri>
      <abstract>
        <p>A universal physical constant (or fundamental constant) is an empirical physical quantity that remains unchanged throughout the universe and across time. All of these properties are satisfied by the structural constant of all atoms <italic>s</italic><sub>0</sub>, shown in the article [<xref ref-type="bibr" rid="B1">1</xref>], and fine-structure constant <inline-formula><mml:math display="inline"></mml:math></inline-formula></p>
        <p>α=</p>
        <p>e</p>
        <p>2</p>
        <p>/</p>
        <p>(</p>
        <p>2</p>
        <p>ε</p>
        <p>0</p>
        <p>hc</p>
        <p>)</p>
        <p>, which was introduced into physics by Arnold Sommerfeld in 1915, and therefore we can claim that that constants are universal physical constants which is also called a natural constants like the speed of light <italic>c</italic>, Newton constant of gravitation <italic>G</italic>, vacuum magnetic permeability <italic>µ</italic><sub>0</sub>, vacuum electric permittivity <italic>ε</italic><sub>0</sub> or others, like cosmological constant Λ, elementary charge <italic>e</italic>, electron mass <italic>m</italic><sub>e</sub>, proton mass <italic>m</italic><sub>p</sub>, neutron mass <italic>m</italic><sub>n</sub> or Avogadro constant <italic>N</italic><sub>A</sub> and so on. I note that Planck’s <italic>h</italic> is not among the above-mentioned universal constants. The reason for this is that according to my earlier research Planck’s <italic>h</italic> is a complex physical quantity consisting of the aforementioned universal constants and structural constant <italic>s</italic><sub>0</sub>: <inline-formula><mml:math display="inline"></mml:math></inline-formula></p>
        <p>h=</p>
        <p>μ</p>
        <p>0</p>
        <p>c</p>
        <p>e</p>
        <p>2</p>
        <p>s</p>
        <p>0</p>
        <p>2</p>
        <p>, [<xref ref-type="bibr" rid="B2">2</xref>]. If the fine-structure constant <italic>α</italic> is determined precisely in a different way, as done in the article [<xref ref-type="bibr" rid="B3">3</xref>], then expression <italic>α</italic> is used to determine Planck’s <italic>h</italic> and finally to calculate the structural constant <italic>s</italic><sub>0</sub>. We will use this fact to write this article. With very precise data for the fine-structure constant <italic>α</italic>, this is the most accurate calculation for <italic>s</italic><sub>0</sub>.</p>
      </abstract>
      <kwd-group kwd-group-type="author-generated" xml:lang="en">
        <kwd>Fine-Structure Constant</kwd>
        <kwd>Structural Constant of All Atoms</kwd>
        <kwd>Mendeleev’s Periodic Table</kwd>
        <kwd>Unit of Substance Type “Boscovich”</kwd>
        <kwd>Universal Physical Constant</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body>
    <sec id="sec1">
      <title>1. Introduction</title>
      <p>The structure constant <italic>s</italic><sub>0</sub> of all atoms refers to the quantity obtained when all atoms in the Mendeleev’s periodic table are ionized, when electrons are ejected from each atom, down to the last electron, until the atom is ionized to the very nucleus of each atom.</p>
      <p>I note that the structure constant <italic>s</italic><sub>0</sub> was independently measured when measuring the ionization energy of all atoms [<xref ref-type="bibr" rid="B1">1</xref>]:</p>
      <disp-formula id="FD1">
        <mml:math>
          <mml:mrow>
            <mml:msub>
              <mml:mi>s</mml:mi>
              <mml:mn>0</mml:mn>
            </mml:msub>
            <mml:mo>=</mml:mo>
            <mml:mfrac>
              <mml:mrow>
                <mml:msqrt>
                  <mml:mrow>
                    <mml:mi>z</mml:mi>
                    <mml:mi>Z</mml:mi>
                  </mml:mrow>
                </mml:msqrt>
              </mml:mrow>
              <mml:mrow>
                <mml:msqrt>
                  <mml:mrow>
                    <mml:mn>2</mml:mn>
                    <mml:msup>
                      <mml:mi>n</mml:mi>
                      <mml:mrow>
                        <mml:mo>±</mml:mo>
                        <mml:mn>1</mml:mn>
                      </mml:mrow>
                    </mml:msup>
                    <mml:msqrt>
                      <mml:mrow>
                        <mml:mn>1</mml:mn>
                        <mml:mo>−</mml:mo>
                        <mml:msup>
                          <mml:mrow>
                            <mml:mrow>
                              <mml:mo>[</mml:mo>
                              <mml:mrow>
                                <mml:mn>1</mml:mn>
                                <mml:mo>−</mml:mo>
                                <mml:mfrac>
                                  <mml:mrow>
                                    <mml:mi>e</mml:mi>
                                    <mml:msub>
                                      <mml:mi>V</mml:mi>
                                      <mml:mrow>
                                        <mml:mtext>em</mml:mtext>
                                        <mml:mrow>
                                          <mml:mo>(</mml:mo>
                                          <mml:mtext>n</mml:mtext>
                                          <mml:mo>)</mml:mo>
                                        </mml:mrow>
                                      </mml:mrow>
                                    </mml:msub>
                                  </mml:mrow>
                                  <mml:mrow>
                                    <mml:mi>m</mml:mi>
                                    <mml:msup>
                                      <mml:mi>c</mml:mi>
                                      <mml:mn>2</mml:mn>
                                    </mml:msup>
                                  </mml:mrow>
                                </mml:mfrac>
                              </mml:mrow>
                              <mml:mo>]</mml:mo>
                            </mml:mrow>
                          </mml:mrow>
                          <mml:mn>2</mml:mn>
                        </mml:msup>
                      </mml:mrow>
                    </mml:msqrt>
                  </mml:mrow>
                </mml:msqrt>
              </mml:mrow>
            </mml:mfrac>
          </mml:mrow>
        </mml:math>
      </disp-formula>
      <p>Let us now recall the meaning of quantities in this equation. <italic>Z</italic> is the atomic number in Mendeleev’s periodic table, <italic>z</italic> is the number of electrons in one orbital of the atom, <italic>n</italic><sup>±1</sup>, is the ordinal number of an orbital (shall) in an atom. This expression, in addition to the usual paths <inline-formula><mml:math display="inline"><mml:mrow><mml:mi> n </mml:mi><mml:mo> = </mml:mo><mml:msup><mml:mi> n </mml:mi><mml:mrow><mml:mo> + </mml:mo><mml:mn> 1 </mml:mn></mml:mrow></mml:msup><mml:mo> = </mml:mo><mml:mn> 1 </mml:mn><mml:mo> , </mml:mo><mml:mn> 2 </mml:mn><mml:mo> , </mml:mo><mml:mn> 3 </mml:mn><mml:mo> , </mml:mo><mml:mn> 4 </mml:mn><mml:mo> , </mml:mo><mml:mo> ⋯ </mml:mo></mml:mrow></mml:math></inline-formula> , also predicts paths <inline-formula><mml:math display="inline"><mml:mrow><mml:mi> n </mml:mi><mml:mo> = </mml:mo><mml:msup><mml:mi> n </mml:mi><mml:mrow><mml:mo> − </mml:mo><mml:mn> 1 </mml:mn></mml:mrow></mml:msup><mml:mo> = </mml:mo><mml:mn> 1 </mml:mn><mml:mo> , </mml:mo><mml:mn> 2 </mml:mn><mml:mo> , </mml:mo><mml:mn> 3 </mml:mn><mml:mo> , </mml:mo><mml:mn> 4 </mml:mn><mml:mo> , </mml:mo><mml:mo> ⋯ </mml:mo></mml:mrow></mml:math></inline-formula> , which opens up the possibility of electron paths in the atom below the first orbit, so for ex ample a neutron can be considered a hydrogen atom with path <italic>n</italic>= <italic>n</italic><sup>−</sup><sup>1</sup> = 126, whereby the mass of the electron in neutron due its speed and relativistic effects increases so much that the neutron become 0.14% heavier than the proton [<xref ref-type="bibr" rid="B2">2</xref>], <italic>m</italic> is the rest mass of one electron, <italic>c</italic> is the speed of light in vacuum, <italic>e</italic> is the charge of one electron and <italic>V</italic><sub>em(n)</sub> is the ionization potential of a single atom.</p>
      <p>From the previous equation for <italic>s</italic><sub>0</sub>, two equations for <italic>V</italic><sub>em</sub> are obtained:</p>
      <disp-formula id="FD2">
        <mml:math>
          <mml:mrow>
            <mml:msub>
              <mml:mi>V</mml:mi>
              <mml:mrow>
                <mml:mtext>em</mml:mtext>
                <mml:mrow>
                  <mml:mo>(</mml:mo>
                  <mml:mn>1</mml:mn>
                  <mml:mo>)</mml:mo>
                </mml:mrow>
              </mml:mrow>
            </mml:msub>
            <mml:mo>=</mml:mo>
            <mml:mfrac>
              <mml:mrow>
                <mml:mi>m</mml:mi>
                <mml:msup>
                  <mml:mi>c</mml:mi>
                  <mml:mn>2</mml:mn>
                </mml:msup>
              </mml:mrow>
              <mml:mrow>
                <mml:mi>z</mml:mi>
                <mml:mi>e</mml:mi>
              </mml:mrow>
            </mml:mfrac>
            <mml:mrow>
              <mml:mo>[</mml:mo>
              <mml:mrow>
                <mml:mn>1</mml:mn>
                <mml:mo>−</mml:mo>
                <mml:msqrt>
                  <mml:mrow>
                    <mml:mn>1</mml:mn>
                    <mml:mo>−</mml:mo>
                    <mml:msup>
                      <mml:mrow>
                        <mml:mrow>
                          <mml:mo>(</mml:mo>
                          <mml:mrow>
                            <mml:mfrac>
                              <mml:mn>1</mml:mn>
                              <mml:mrow>
                                <mml:msup>
                                  <mml:mi>n</mml:mi>
                                  <mml:mrow>
                                    <mml:mo>±</mml:mo>
                                    <mml:mn>1</mml:mn>
                                  </mml:mrow>
                                </mml:msup>
                              </mml:mrow>
                            </mml:mfrac>
                            <mml:mfrac>
                              <mml:mrow>
                                <mml:mi>z</mml:mi>
                                <mml:mi>Z</mml:mi>
                              </mml:mrow>
                              <mml:mrow>
                                <mml:mn>2</mml:mn>
                                <mml:msubsup>
                                  <mml:mi>s</mml:mi>
                                  <mml:mn>0</mml:mn>
                                  <mml:mn>2</mml:mn>
                                </mml:msubsup>
                              </mml:mrow>
                            </mml:mfrac>
                          </mml:mrow>
                          <mml:mo>)</mml:mo>
                        </mml:mrow>
                      </mml:mrow>
                      <mml:mn>2</mml:mn>
                    </mml:msup>
                  </mml:mrow>
                </mml:msqrt>
              </mml:mrow>
              <mml:mo>]</mml:mo>
            </mml:mrow>
          </mml:mrow>
        </mml:math>
      </disp-formula>
      <disp-formula id="FD3">
        <mml:math>
          <mml:mrow>
            <mml:msub>
              <mml:mi>V</mml:mi>
              <mml:mrow>
                <mml:mtext>em</mml:mtext>
                <mml:mrow>
                  <mml:mo>(</mml:mo>
                  <mml:mn>2</mml:mn>
                  <mml:mo>)</mml:mo>
                </mml:mrow>
              </mml:mrow>
            </mml:msub>
            <mml:mo>=</mml:mo>
            <mml:mfrac>
              <mml:mrow>
                <mml:mi>m</mml:mi>
                <mml:msup>
                  <mml:mi>c</mml:mi>
                  <mml:mn>2</mml:mn>
                </mml:msup>
              </mml:mrow>
              <mml:mrow>
                <mml:mi>z</mml:mi>
                <mml:mi>e</mml:mi>
              </mml:mrow>
            </mml:mfrac>
            <mml:mrow>
              <mml:mo>[</mml:mo>
              <mml:mrow>
                <mml:mn>1</mml:mn>
                <mml:mo>+</mml:mo>
                <mml:msqrt>
                  <mml:mrow>
                    <mml:mn>1</mml:mn>
                    <mml:mo>−</mml:mo>
                    <mml:msup>
                      <mml:mrow>
                        <mml:mrow>
                          <mml:mo>(</mml:mo>
                          <mml:mrow>
                            <mml:mfrac>
                              <mml:mn>1</mml:mn>
                              <mml:mrow>
                                <mml:msup>
                                  <mml:mi>n</mml:mi>
                                  <mml:mrow>
                                    <mml:mo>±</mml:mo>
                                    <mml:mn>1</mml:mn>
                                  </mml:mrow>
                                </mml:msup>
                              </mml:mrow>
                            </mml:mfrac>
                            <mml:mfrac>
                              <mml:mrow>
                                <mml:mi>z</mml:mi>
                                <mml:mi>Z</mml:mi>
                              </mml:mrow>
                              <mml:mrow>
                                <mml:mn>2</mml:mn>
                                <mml:msubsup>
                                  <mml:mi>s</mml:mi>
                                  <mml:mn>0</mml:mn>
                                  <mml:mn>2</mml:mn>
                                </mml:msubsup>
                              </mml:mrow>
                            </mml:mfrac>
                          </mml:mrow>
                          <mml:mo>)</mml:mo>
                        </mml:mrow>
                      </mml:mrow>
                      <mml:mn>2</mml:mn>
                    </mml:msup>
                  </mml:mrow>
                </mml:msqrt>
              </mml:mrow>
              <mml:mo>]</mml:mo>
            </mml:mrow>
            <mml:mo>.</mml:mo>
          </mml:mrow>
        </mml:math>
      </disp-formula>
      <p>The solution <italic>V</italic><sub>em(1)</sub> is for the lower (ionization) voltages (namely, we will see later after we determinate <italic>s</italic><sub>0</sub>, for <italic>q</italic> = −<italic>e</italic>, <italic>z</italic> = 1, <italic>n</italic><sup>±1</sup> = 1) when <italic>Z</italic> is going from 0 to 137.035999166(15), than ionization voltage <italic>V</italic><sub>em(1)</sub> is going from 0 V to 510 999 V, and the solution <italic>V</italic><sub>em(2)</sub> (<italic>q</italic> = −<italic>e</italic>, <italic>z</italic> = 1, <italic>Z</italic> = 1/<italic>n</italic><sup>±1</sup>) when <italic>Z</italic> is going from 0 to 137.035999166(15) (ionization) voltage <italic>V</italic><sub>em(2)</sub> goes in opposite direction from 1 020 130 V to 510 999 V. </p>
      <p>The value of structural constant <italic>s</italic><sub>0</sub> is the same for all atoms (see <bold>Table 1</bold>).</p>
      <p><bold>Table 1</bold><bold>.</bold> Structural constant of atoms <italic>s</italic><sub>0</sub> calculated on the basis of ionization voltage according NIST’s data*.</p>
      <table-wrap id="tbl1">
        <label>Table 1</label>
        <table>
          <tbody>
            <tr>
              <td>Chemical symbol</td>
              <td>Atom number Z</td>
              <td>Ionization voltage [V]</td>
              <td>
                Structural constant
                <italic>s</italic>
                <sub>0</sub>
              </td>
              <td>Remark</td>
            </tr>
            <tr>
              <td>
                n
                <sup>0</sup>
                , H
              </td>
              <td>1</td>
              <td>712207.805, 13.59843449*</td>
              <td>8.278691910036</td>
              <td>
                In
                <italic>V</italic>
                <sub>em(2)</sub>
                <italic>n</italic>
                <sup>−</sup>
                <sup>1</sup>
                = 126
              </td>
            </tr>
            <tr>
              <td>He</td>
              <td>2</td>
              <td>54.4177650*</td>
              <td>8.277860595602</td>
              <td>
              </td>
            </tr>
            <tr>
              <td>Li</td>
              <td>3</td>
              <td>122.4543581*</td>
              <td>8.277755226469</td>
              <td>
              </td>
            </tr>
            <tr>
              <td>Be</td>
              <td>4</td>
              <td>217.7185843*</td>
              <td>8.277739553105</td>
              <td>
              </td>
            </tr>
            <tr>
              <td>B</td>
              <td>5</td>
              <td>340.226020*</td>
              <td>8.277739896484</td>
              <td>
              </td>
            </tr>
            <tr>
              <td>C</td>
              <td>6</td>
              <td>489.993194*</td>
              <td>8.277757231963</td>
              <td>
              </td>
            </tr>
            <tr>
              <td>N</td>
              <td>7</td>
              <td>667.046116*</td>
              <td>8.277771755296</td>
              <td>
              </td>
            </tr>
            <tr>
              <td>O</td>
              <td>8</td>
              <td>871.409880*</td>
              <td>8.277791688375</td>
              <td>
              </td>
            </tr>
            <tr>
              <td>F</td>
              <td>9</td>
              <td>1103.11747*</td>
              <td>8.277812276144</td>
              <td>
              </td>
            </tr>
            <tr>
              <td>Ne</td>
              <td>10</td>
              <td>1362.19915*</td>
              <td>8.277842618038</td>
              <td>
              </td>
            </tr>
            <tr>
              <td>Ca</td>
              <td>20</td>
              <td>5469.8615*</td>
              <td>8.278203152589</td>
              <td>
              </td>
            </tr>
            <tr>
              <td>Zn</td>
              <td>30</td>
              <td>12388.929*</td>
              <td>8.278637976575</td>
              <td>
              </td>
            </tr>
            <tr>
              <td>Zr</td>
              <td>40</td>
              <td>22236.677*</td>
              <td>8.279106265650</td>
              <td>
              </td>
            </tr>
            <tr>
              <td>Sn</td>
              <td>50</td>
              <td>35192.39*</td>
              <td>8.279610860584</td>
              <td>
              </td>
            </tr>
            <tr>
              <td>Nd</td>
              <td>60</td>
              <td>51515.58*</td>
              <td>8.280166600276</td>
              <td>
              </td>
            </tr>
            <tr>
              <td>Yb</td>
              <td>70</td>
              <td>71574.80*</td>
              <td>8.280846679237</td>
              <td>
              </td>
            </tr>
            <tr>
              <td>Hg</td>
              <td>80</td>
              <td>95897.70*</td>
              <td>8.281775555833</td>
              <td>
              </td>
            </tr>
            <tr>
              <td>Th</td>
              <td>90</td>
              <td>125253.40*</td>
              <td>8.283267729872</td>
              <td>
              </td>
            </tr>
            <tr>
              <td>Fm</td>
              <td>100</td>
              <td>160804.00*</td>
              <td>8.286011987216</td>
              <td>
              </td>
            </tr>
            <tr>
              <td>Ds</td>
              <td>110</td>
              <td>204394.00*</td>
              <td>8.291558770012</td>
              <td>Latest data at NIST</td>
            </tr>
          </tbody>
        </table>
      </table-wrap>
      <p>NIST: National Institute of Standard and Technology. <ext-link ext-link-type="uri" xlink:href="https://en.wikipedia.org/wiki/National_Institute_of_Standards_and_Technology">https://en.wikipedia.org/wiki/National_Institute_of_Standards_and_Technology</ext-link>*<ext-link ext-link-type="uri" xlink:href="https://physics.nist.gov/PhysRefData/ASD/ionEnergy.html">https://physics.nist.gov/PhysRefData/ASD/ionEnergy.html</ext-link></p>
      <p>As we can see, all <italic>s</italic><sub>0</sub> values for all atoms are concentrated around the value 8.278 - 8.291. For precise determination, more accurate measurement is required. For this purpose, we will use another most accurate measurement.</p>
      <p>The most accurate value of the inverse fine-structure constant, more accurate than previous results obtained based on the ionization energies of atoms, [<xref ref-type="bibr" rid="B1">1</xref>], is given in the article [<xref ref-type="bibr" rid="B3">3</xref>] and it is by Arnold Sommerfeld: </p>
      <disp-formula id="FD4">
        <label>(1)</label>
        <mml:math display="inline">
          <mml:mrow>
            <mml:msup>
              <mml:mi>α</mml:mi>
              <mml:mrow>
                <mml:mo>−</mml:mo>
                <mml:mn>1</mml:mn>
              </mml:mrow>
            </mml:msup>
            <mml:mo>=</mml:mo>
            <mml:mrow>
              <mml:mrow>
                <mml:mn>2</mml:mn>
                <mml:msub>
                  <mml:mi>ε</mml:mi>
                  <mml:mn>0</mml:mn>
                </mml:msub>
                <mml:mi>h</mml:mi>
                <mml:mi>c</mml:mi>
              </mml:mrow>
              <mml:mo>/</mml:mo>
              <mml:mrow>
                <mml:msup>
                  <mml:mi>e</mml:mi>
                  <mml:mn>2</mml:mn>
                </mml:msup>
              </mml:mrow>
            </mml:mrow>
            <mml:mo>=</mml:mo>
            <mml:mn>137.035999166</mml:mn>
            <mml:mrow>
              <mml:mo>(</mml:mo>
              <mml:mrow>
                <mml:mn>15</mml:mn>
              </mml:mrow>
              <mml:mo>)</mml:mo>
            </mml:mrow>
            <mml:mtext>
               
            </mml:mtext>
            <mml:mrow>
              <mml:mo>[</mml:mo>
              <mml:mrow>
                <mml:mn>0.11</mml:mn>
                <mml:mtext>
                   
                </mml:mtext>
                <mml:mtext>ppb</mml:mtext>
              </mml:mrow>
              <mml:mo>]</mml:mo>
            </mml:mrow>
          </mml:mrow>
        </mml:math>
      </disp-formula>
      <p>This was obtained by measuring the magnetic moment of the electron, which is the most accurate way to determine the fine-structure constant <italic>α</italic>. Therefore, this can be a guide for determining the structure constant <italic>s</italic><sub>0</sub>, and we will use it in the following.</p>
      <p>We assume that Planck’s <italic>h</italic> in Equation (1) is not predefined. Therefore, Planck’s <italic>h</italic> from Equation (1) can be expressed as:</p>
      <disp-formula id="FD5">
        <label>(2)</label>
        <mml:math display="inline">
          <mml:mrow>
            <mml:mi>h</mml:mi>
            <mml:mo>=</mml:mo>
            <mml:mrow>
              <mml:mrow>
                <mml:msup>
                  <mml:mi>α</mml:mi>
                  <mml:mrow>
                    <mml:mo>−</mml:mo>
                    <mml:mn>1</mml:mn>
                  </mml:mrow>
                </mml:msup>
                <mml:msup>
                  <mml:mi>e</mml:mi>
                  <mml:mn>2</mml:mn>
                </mml:msup>
              </mml:mrow>
              <mml:mo>/</mml:mo>
              <mml:mrow>
                <mml:mrow>
                  <mml:mo>(</mml:mo>
                  <mml:mrow>
                    <mml:mn>2</mml:mn>
                    <mml:msub>
                      <mml:mi>ε</mml:mi>
                      <mml:mn>0</mml:mn>
                    </mml:msub>
                    <mml:mi>c</mml:mi>
                  </mml:mrow>
                  <mml:mo>)</mml:mo>
                </mml:mrow>
              </mml:mrow>
            </mml:mrow>
            <mml:mo>=</mml:mo>
            <mml:mrow>
              <mml:mrow>
                <mml:msup>
                  <mml:mi>α</mml:mi>
                  <mml:mrow>
                    <mml:mo>−</mml:mo>
                    <mml:mn>1</mml:mn>
                  </mml:mrow>
                </mml:msup>
                <mml:msup>
                  <mml:mi>e</mml:mi>
                  <mml:mn>2</mml:mn>
                </mml:msup>
                <mml:msub>
                  <mml:mi>μ</mml:mi>
                  <mml:mn>0</mml:mn>
                </mml:msub>
                <mml:mi>c</mml:mi>
              </mml:mrow>
              <mml:mo>/</mml:mo>
              <mml:mn>2</mml:mn>
            </mml:mrow>
          </mml:mrow>
        </mml:math>
      </disp-formula>
      <p>taking into account that it is worth:</p>
      <disp-formula id="FD6">
        <label>(3)</label>
        <mml:math display="inline">
          <mml:mrow>
            <mml:msub>
              <mml:mi>μ</mml:mi>
              <mml:mn>0</mml:mn>
            </mml:msub>
            <mml:msub>
              <mml:mi>ε</mml:mi>
              <mml:mn>0</mml:mn>
            </mml:msub>
            <mml:msup>
              <mml:mi>c</mml:mi>
              <mml:mn>2</mml:mn>
            </mml:msup>
            <mml:mo>=</mml:mo>
            <mml:mn>1</mml:mn>
          </mml:mrow>
        </mml:math>
      </disp-formula>
      <p>Planck’s <italic>h</italic> is, according to article [<xref ref-type="bibr" rid="B2">2</xref>], based on the Lecher line model of the atom [<xref ref-type="bibr" rid="B2">2</xref>], equal to:</p>
      <disp-formula id="FD7">
        <label>(4)</label>
        <mml:math display="inline">
          <mml:mrow>
            <mml:mi>h</mml:mi>
            <mml:mo>=</mml:mo>
            <mml:msub>
              <mml:mi>μ</mml:mi>
              <mml:mn>0</mml:mn>
            </mml:msub>
            <mml:mi>c</mml:mi>
            <mml:msup>
              <mml:mi>e</mml:mi>
              <mml:mn>2</mml:mn>
            </mml:msup>
            <mml:msubsup>
              <mml:mi>s</mml:mi>
              <mml:mn>0</mml:mn>
              <mml:mn>2</mml:mn>
            </mml:msubsup>
          </mml:mrow>
        </mml:math>
      </disp-formula>
      <p>Here is the explanation! The characteristics of an oscillatory circuit obtained from a Lecher line depend only on the parameters of inductance <italic>L</italic> and capacitance <italic>C</italic> of that circuit, and not on variables in that circuit, such as charges, currents, or voltages. Thus, it was shown that the electromagnetic energy <italic>E</italic><sub>em</sub> of this oscillator is proportional to its own frequency <inline-formula><mml:math display="inline"><mml:mrow><mml:mi> f </mml:mi><mml:mo> = </mml:mo><mml:mrow><mml:mn> 1 </mml:mn><mml:mo> / </mml:mo><mml:mrow><mml:mrow><mml:mo> ( </mml:mo><mml:mrow><mml:mn> 2 </mml:mn><mml:mi> π </mml:mi><mml:msqrt><mml:mrow><mml:mi> L </mml:mi><mml:mi> C </mml:mi></mml:mrow></mml:msqrt></mml:mrow><mml:mo> ) </mml:mo></mml:mrow></mml:mrow></mml:mrow></mml:mrow></mml:math></inline-formula> , and a constant <italic>h</italic>, <italic>E</italic><sub>em</sub> = <italic>hf</italic>, and this constant <italic>h</italic> itself is <inline-formula><mml:math display="inline"><mml:mrow><mml:mi> h </mml:mi><mml:mo> = </mml:mo><mml:msub><mml:mi> μ </mml:mi><mml:mn> 0 </mml:mn></mml:msub><mml:mi> c </mml:mi><mml:msup><mml:mi> e </mml:mi><mml:mn> 2 </mml:mn></mml:msup><mml:msubsup><mml:mi> s </mml:mi><mml:mn> 0 </mml:mn><mml:mn> 2 </mml:mn></mml:msubsup></mml:mrow></mml:math></inline-formula> . This represents the well-known Planck’s law for the energy of an electromagnetic wave, and here it is the energy of an electromagnetic oscillator created from a Lecher line.</p>
      <p>Using Equation (1), and equating Equations (2) and (4), the structural constant <italic>s</italic><sub>0</sub> is obtained:</p>
      <disp-formula id="FD8">
        <label>(5)</label>
        <mml:math>
          <mml:mrow>
            <mml:msub>
              <mml:mi>s</mml:mi>
              <mml:mn>0</mml:mn>
            </mml:msub>
            <mml:mo>=</mml:mo>
            <mml:msqrt>
              <mml:mrow>
                <mml:mfrac>
                  <mml:mn>1</mml:mn>
                  <mml:mn>2</mml:mn>
                </mml:mfrac>
              </mml:mrow>
            </mml:msqrt>
            <mml:mo>=</mml:mo>
            <mml:mn>8.27756</mml:mn>
          </mml:mrow>
        </mml:math>
      </disp-formula>
      <p>Using Equation (5), and according to article [<xref ref-type="bibr" rid="B2">2</xref>], the maximum number of different type of atoms in Mendeleev’s table, not counting isotopes, is:</p>
      <disp-formula id="FD9">
        <label>(6)</label>
        <mml:math display="inline">
          <mml:mrow>
            <mml:mrow>
              <mml:mn>1</mml:mn>
              <mml:mo>/</mml:mo>
              <mml:mi>B</mml:mi>
            </mml:mrow>
            <mml:mo>=</mml:mo>
            <mml:mn>2</mml:mn>
            <mml:msubsup>
              <mml:mi>s</mml:mi>
              <mml:mn>0</mml:mn>
              <mml:mn>2</mml:mn>
            </mml:msubsup>
            <mml:mo>=</mml:mo>
            <mml:mn>137.035999166</mml:mn>
          </mml:mrow>
        </mml:math>
      </disp-formula>
      <p>The explanation for the stated amount comes from determining the speed that an electron can reach in the first shell of an atom (<inline-formula><mml:math><mml:mrow><mml:msup><mml:mi> n </mml:mi><mml:mrow><mml:mo> ± </mml:mo><mml:mn> 1 </mml:mn></mml:mrow></mml:msup><mml:mo> = </mml:mo><mml:mn> 1 </mml:mn></mml:mrow></mml:math></inline-formula> ) in relation to the speed of light:</p>
      <disp-formula id="FD10">
        <mml:math>
          <mml:mrow>
            <mml:msub>
              <mml:mi>β</mml:mi>
              <mml:mrow>
                <mml:mi>max</mml:mi>
              </mml:mrow>
            </mml:msub>
            <mml:mo>=</mml:mo>
            <mml:mfrac>
              <mml:mrow>
                <mml:msub>
                  <mml:mi>v</mml:mi>
                  <mml:mrow>
                    <mml:mi>max</mml:mi>
                  </mml:mrow>
                </mml:msub>
              </mml:mrow>
              <mml:mi>c</mml:mi>
            </mml:mfrac>
            <mml:mo>=</mml:mo>
            <mml:mfrac>
              <mml:mn>1</mml:mn>
              <mml:mrow>
                <mml:msup>
                  <mml:mi>n</mml:mi>
                  <mml:mrow>
                    <mml:mo>±</mml:mo>
                    <mml:mn>1</mml:mn>
                  </mml:mrow>
                </mml:msup>
              </mml:mrow>
            </mml:mfrac>
            <mml:mfrac>
              <mml:mrow>
                <mml:mi>z</mml:mi>
                <mml:msub>
                  <mml:mi>Z</mml:mi>
                  <mml:mrow>
                    <mml:mi>max</mml:mi>
                  </mml:mrow>
                </mml:msub>
              </mml:mrow>
              <mml:mrow>
                <mml:mn>2</mml:mn>
                <mml:msubsup>
                  <mml:mi>s</mml:mi>
                  <mml:mn>0</mml:mn>
                  <mml:mn>2</mml:mn>
                </mml:msubsup>
              </mml:mrow>
            </mml:mfrac>
            <mml:mo>=</mml:mo>
            <mml:mn>1</mml:mn>
          </mml:mrow>
        </mml:math>
      </disp-formula>
      <p>From here for <italic>z</italic> = 1, <inline-formula><mml:math><mml:mrow><mml:msup><mml:mi> n </mml:mi><mml:mrow><mml:mo> ± </mml:mo><mml:mn> 1 </mml:mn></mml:mrow></mml:msup><mml:mo> = </mml:mo><mml:mn> 1 </mml:mn></mml:mrow></mml:math></inline-formula> it follows that <inline-formula><mml:math><mml:mrow><mml:msub><mml:mi> Z </mml:mi><mml:mrow><mml:mi> max </mml:mi></mml:mrow></mml:msub><mml:mo> = </mml:mo><mml:mn> 2 </mml:mn><mml:msubsup><mml:mi> s </mml:mi><mml:mn> 0 </mml:mn><mml:mn> 2 </mml:mn></mml:msubsup></mml:mrow></mml:math></inline-formula> , that is Equation (6).</p>
      <p>From Equation (6) it follows that the distance between two adjacent types of atoms, and I suggest that this measure be called a unit of measurement for a type of substance “boscovich”, <italic>B</italic>, [<xref ref-type="bibr" rid="B4">4</xref>] is equal to:</p>
      <disp-formula id="FD11">
        <label>(7)</label>
        <mml:math display="inline">
          <mml:mrow>
            <mml:mi>B</mml:mi>
            <mml:mo>=</mml:mo>
            <mml:mrow>
              <mml:mn>1</mml:mn>
              <mml:mo>/</mml:mo>
              <mml:mrow>
                <mml:mrow>
                  <mml:mo>(</mml:mo>
                  <mml:mrow>
                    <mml:mn>2</mml:mn>
                    <mml:msubsup>
                      <mml:mi>s</mml:mi>
                      <mml:mn>0</mml:mn>
                      <mml:mn>2</mml:mn>
                    </mml:msubsup>
                  </mml:mrow>
                  <mml:mo>)</mml:mo>
                </mml:mrow>
              </mml:mrow>
            </mml:mrow>
            <mml:mo>=</mml:mo>
            <mml:mn>7.297352568</mml:mn>
            <mml:mo>×</mml:mo>
            <mml:msup>
              <mml:mrow>
                <mml:mn>10</mml:mn>
              </mml:mrow>
              <mml:mrow>
                <mml:mo>−</mml:mo>
                <mml:mn>3</mml:mn>
              </mml:mrow>
            </mml:msup>
          </mml:mrow>
        </mml:math>
      </disp-formula>
      <p>Equation (7) simultaneously represents the fine-structure constant <italic>α</italic> according to NIST in 2022 CODATA.</p>
      <p>From Equations (4) and (5) comes Planck’s <italic>h</italic>:</p>
      <disp-formula id="FD12">
        <label>(8)</label>
        <mml:math display="inline">
          <mml:mrow>
            <mml:mi>h</mml:mi>
            <mml:mo>=</mml:mo>
            <mml:msub>
              <mml:mi>μ</mml:mi>
              <mml:mn>0</mml:mn>
            </mml:msub>
            <mml:mi>c</mml:mi>
            <mml:msup>
              <mml:mi>e</mml:mi>
              <mml:mn>2</mml:mn>
            </mml:msup>
            <mml:msubsup>
              <mml:mi>s</mml:mi>
              <mml:mn>0</mml:mn>
              <mml:mn>2</mml:mn>
            </mml:msubsup>
            <mml:mo>=</mml:mo>
            <mml:mn>6.626070159</mml:mn>
            <mml:mo>×</mml:mo>
            <mml:msup>
              <mml:mrow>
                <mml:mn>10</mml:mn>
              </mml:mrow>
              <mml:mrow>
                <mml:mo>−</mml:mo>
                <mml:mn>34</mml:mn>
              </mml:mrow>
            </mml:msup>
            <mml:mtext>
               
            </mml:mtext>
            <mml:mtext>J</mml:mtext>
            <mml:mo>⋅</mml:mo>
            <mml:msup>
              <mml:mrow>
                <mml:mtext>Hz</mml:mtext>
              </mml:mrow>
              <mml:mrow>
                <mml:mo>−</mml:mo>
                <mml:mn>1</mml:mn>
              </mml:mrow>
            </mml:msup>
          </mml:mrow>
        </mml:math>
      </disp-formula>
      <p>This value in Equation (8) exactly matches the value of Planck’s <italic>h</italic> obtained by NIST in 2022, CODATA. In the same time, it can be seen from <bold>Table 2</bold> that all other results are precisely aligned with NIST in 2022 CODATA, <italic>i.e.</italic>, without difference, using the results from article [<xref ref-type="bibr" rid="B3">3</xref>] and the results from the two remaining articles [<xref ref-type="bibr" rid="B1">1</xref>] and [<xref ref-type="bibr" rid="B2">2</xref>]. </p>
      <p>Such good agreement of the results with CODATA values using the new constant <italic>s</italic><sub>0</sub> would not be possible without a new fundamental constant <italic>s</italic><sub>0</sub>, which is independent and precisely measurable. Namely if <italic>s</italic><sub>0</sub> were not a universal physical constant, at least one of the 9 physical quantities in <bold>Table 2</bold> would not match the values in CODATA 2022.</p>
      <p><bold>Table 2</bold><bold>.</bold> Eight (8) initial constants (<italic>s</italic><sub>0</sub>, <italic>B</italic>, 1/<italic>B</italic>, <italic>c</italic>, <italic>μ</italic><sub>0</sub>, <italic>e</italic>, <italic>m</italic>, <italic>m</italic><sub>p</sub>) convert (9) nine constants in interchangeable.</p>
      <table-wrap id="tbl2">
        <label>Table 2</label>
        <table>
          <tbody>
            <tr>
              <td>
                <bold>Quantity</bold>
              </td>
              <td>
                <bold>Symbol</bold>
              </td>
              <td>
                <bold>Formula</bold>
              </td>
              <td>
                <bold>Value</bold>
              </td>
              <td>
                <bold>Unit</bold>
              </td>
              <td>
                <bold>Difference</bold>
                <sup>a</sup>
              </td>
            </tr>
            <tr>
              <td>
                <italic>Structural constant</italic>
                <italic>of all atoms</italic>
              </td>
              <td>
                <italic>s</italic>
                <sub>0</sub>
              </td>
              <td>
                <italic>s</italic>
                <sub>0</sub>
                <sup>Equation</sup>
                <sup>(5)</sup>
              </td>
              <td>
                8.27756
                <sup>b</sup>
              </td>
              <td>1</td>
              <td>unknown</td>
            </tr>
            <tr>
              <td>Unit of substance type = boscovichMax. number of diff. type of atomsSpeed of light in vacuum</td>
              <td>
                <italic>B</italic>
                1/
                <italic>B</italic>
                <italic>c</italic>
              </td>
              <td>
                <inline-formula>
                  <mml:math display="inline">
                    <mml:mrow>
                      <mml:mrow>
                        <mml:mn>1</mml:mn>
                        <mml:mo>/</mml:mo>
                        <mml:mrow>
                          <mml:mrow>
                            <mml:mo>(</mml:mo>
                            <mml:mrow>
                              <mml:mn>2</mml:mn>
                              <mml:msubsup>
                                <mml:mi>s</mml:mi>
                                <mml:mn>0</mml:mn>
                                <mml:mn>2</mml:mn>
                              </mml:msubsup>
                            </mml:mrow>
                            <mml:mo>)</mml:mo>
                          </mml:mrow>
                        </mml:mrow>
                      </mml:mrow>
                    </mml:mrow>
                  </mml:math>
                </inline-formula>
                <sup>Equation</sup>
                <sup>(7)</sup>
                <inline-formula>
                  <mml:math display="inline">
                    <mml:mrow>
                      <mml:mn>2</mml:mn>
                      <mml:msubsup>
                        <mml:mi>s</mml:mi>
                        <mml:mn>0</mml:mn>
                        <mml:mn>2</mml:mn>
                      </mml:msubsup>
                    </mml:mrow>
                  </mml:math>
                </inline-formula>
                <sup>Equation</sup>
                <sup>(6)</sup>
                <inline-formula>
                  <mml:math display="inline">
                    <mml:mrow>
                      <mml:msub>
                        <mml:mi>ε</mml:mi>
                        <mml:mn>0</mml:mn>
                      </mml:msub>
                      <mml:msub>
                        <mml:mi>μ</mml:mi>
                        <mml:mn>0</mml:mn>
                      </mml:msub>
                      <mml:msup>
                        <mml:mi>c</mml:mi>
                        <mml:mn>2</mml:mn>
                      </mml:msup>
                      <mml:mo>=</mml:mo>
                      <mml:mn>1</mml:mn>
                    </mml:mrow>
                  </mml:math>
                </inline-formula>
              </td>
              <td>
                7.297352568 × 10
                <sup>−</sup>
                <sup>3</sup>
                137.035999166299792458
              </td>
              <td>
                11m·s
                <sup>−</sup>
                <sup>1</sup>
              </td>
              <td>0.00000.00000.0000</td>
            </tr>
            <tr>
              <td>Vacuum magnetic permeability</td>
              <td>
                <italic>μ</italic>
                <sub>0</sub>
              </td>
              <td>
                <italic>μ</italic>
                <sub>0</sub>
              </td>
              <td>
                1.256637061 × 10
                <sup>−</sup>
                <sup>6</sup>
              </td>
              <td>
                N·A
                <sup>−</sup>
                <sup>2</sup>
              </td>
              <td>0.0000</td>
            </tr>
            <tr>
              <td>Elementary charge</td>
              <td>
                <italic>e</italic>
              </td>
              <td>
                <italic>e</italic>
              </td>
              <td>
                1.602176634 × 10
                <sup>−</sup>
                <sup>19</sup>
              </td>
              <td>C</td>
              <td>0.0000</td>
            </tr>
            <tr>
              <td>Electron mass</td>
              <td>
                <italic>m</italic>
              </td>
              <td>
                <italic>m</italic>
              </td>
              <td>
                9.1093837139 × 10
                <sup>−</sup>
                <sup>31</sup>
              </td>
              <td>kg</td>
              <td>0.0000</td>
            </tr>
            <tr>
              <td>Proton mass</td>
              <td>
                <italic>m</italic>
                <sub>p</sub>
              </td>
              <td>
                <italic>m</italic>
                <sub>p</sub>
              </td>
              <td>
                1.6726219259 × 10
                <sup>−</sup>
                <sup>27</sup>
              </td>
              <td>kg</td>
              <td>0.0000</td>
            </tr>
            <tr>
              <td colspan="6">
                <italic>Down</italic>
                : 9
                <italic>interchangeable constants</italic>
              </td>
            </tr>
            <tr>
              <td>
                1. Fine-structure constant:
                <inline-formula>
                  <mml:math display="inline">
                    <mml:mrow>
                      <mml:mrow>
                        <mml:mrow>
                          <mml:msup>
                            <mml:mi>e</mml:mi>
                            <mml:mn>2</mml:mn>
                          </mml:msup>
                        </mml:mrow>
                        <mml:mo>/</mml:mo>
                        <mml:mrow>
                          <mml:mrow>
                            <mml:mo>(</mml:mo>
                            <mml:mrow>
                              <mml:mn>2</mml:mn>
                              <mml:msub>
                                <mml:mi>ε</mml:mi>
                                <mml:mn>0</mml:mn>
                              </mml:msub>
                              <mml:mi>h</mml:mi>
                              <mml:mi>c</mml:mi>
                            </mml:mrow>
                            <mml:mo>)</mml:mo>
                          </mml:mrow>
                        </mml:mrow>
                      </mml:mrow>
                    </mml:mrow>
                  </mml:math>
                </inline-formula>
              </td>
              <td>
                <italic>α</italic>
              </td>
              <td>
                <inline-formula>
                  <mml:math display="inline">
                    <mml:mrow>
                      <mml:mrow>
                        <mml:mrow>
                          <mml:msup>
                            <mml:mi>e</mml:mi>
                            <mml:mn>2</mml:mn>
                          </mml:msup>
                        </mml:mrow>
                        <mml:mo>/</mml:mo>
                        <mml:mrow>
                          <mml:mrow>
                            <mml:mo>(</mml:mo>
                            <mml:mrow>
                              <mml:mn>2</mml:mn>
                              <mml:msub>
                                <mml:mi>ε</mml:mi>
                                <mml:mn>0</mml:mn>
                              </mml:msub>
                              <mml:mi>h</mml:mi>
                              <mml:mi>c</mml:mi>
                            </mml:mrow>
                            <mml:mo>)</mml:mo>
                          </mml:mrow>
                        </mml:mrow>
                      </mml:mrow>
                    </mml:mrow>
                  </mml:math>
                </inline-formula>
                <sup>Equation</sup>
                <sup>1</sup>
              </td>
              <td>
                7.2973525643 × 10
                <sup>−</sup>
                <sup>3</sup>
              </td>
              <td>1</td>
              <td>0.0000</td>
            </tr>
            <tr>
              <td>1. a) Inverse-fine structure constant</td>
              <td>
                <italic>α</italic>
                <sup>−</sup>
                <sup>1</sup>
              </td>
              <td>
                <inline-formula>
                  <mml:math display="inline">
                    <mml:mrow>
                      <mml:mrow>
                        <mml:mrow>
                          <mml:mn>2</mml:mn>
                          <mml:msub>
                            <mml:mi>ε</mml:mi>
                            <mml:mn>0</mml:mn>
                          </mml:msub>
                          <mml:mi>h</mml:mi>
                          <mml:mi>c</mml:mi>
                        </mml:mrow>
                        <mml:mo>/</mml:mo>
                        <mml:mrow>
                          <mml:msup>
                            <mml:mi>e</mml:mi>
                            <mml:mn>2</mml:mn>
                          </mml:msup>
                        </mml:mrow>
                      </mml:mrow>
                    </mml:mrow>
                  </mml:math>
                </inline-formula>
                <sup>Equation</sup>
                <sup>1</sup>
              </td>
              <td>
                1.370035999 × 10
                <sup>2</sup>
              </td>
              <td>1</td>
              <td>0.0000</td>
            </tr>
            <tr>
              <td>2. von Klitzing constant</td>
              <td>
                <italic>R</italic>
                <sub>K</sub>
              </td>
              <td>
                <inline-formula>
                  <mml:math>
                    <mml:mrow>
                      <mml:msub>
                        <mml:mi>μ</mml:mi>
                        <mml:mn>0</mml:mn>
                      </mml:msub>
                      <mml:mi>c</mml:mi>
                      <mml:msubsup>
                        <mml:mi>s</mml:mi>
                        <mml:mn>0</mml:mn>
                        <mml:mn>2</mml:mn>
                      </mml:msubsup>
                    </mml:mrow>
                  </mml:math>
                </inline-formula>
              </td>
              <td>
                2.581280744 × 10
                <sup>4</sup>
              </td>
              <td>Ω</td>
              <td>0.0000</td>
            </tr>
            <tr>
              <td>3. Planck constant</td>
              <td>
                <italic>h</italic>
              </td>
              <td>
                <inline-formula>
                  <mml:math>
                    <mml:mrow>
                      <mml:msub>
                        <mml:mi>μ</mml:mi>
                        <mml:mn>0</mml:mn>
                      </mml:msub>
                      <mml:mi>c</mml:mi>
                      <mml:msup>
                        <mml:mi>e</mml:mi>
                        <mml:mn>2</mml:mn>
                      </mml:msup>
                      <mml:msubsup>
                        <mml:mi>s</mml:mi>
                        <mml:mn>0</mml:mn>
                        <mml:mn>2</mml:mn>
                      </mml:msubsup>
                    </mml:mrow>
                  </mml:math>
                </inline-formula>
              </td>
              <td>
                6.626070158 × 10
                <sup>−</sup>
                <sup>34</sup>
              </td>
              <td>
                J·Hz
                <sup>−</sup>
                <sup>1</sup>
              </td>
              <td>0.0000</td>
            </tr>
            <tr>
              <td>
                3. a) Conversion constant,
                <italic>K</italic>
                <sub>0</sub>
              </td>
              <td>
                <italic>K</italic>
                <sub>0</sub>
              </td>
              <td>
                <inline-formula>
                  <mml:math>
                    <mml:mrow>
                      <mml:mrow>
                        <mml:mn>1</mml:mn>
                        <mml:mo>/</mml:mo>
                        <mml:mrow>
                          <mml:mrow>
                            <mml:mo>(</mml:mo>
                            <mml:mrow>
                              <mml:mn>2</mml:mn>
                              <mml:msub>
                                <mml:mi>μ</mml:mi>
                                <mml:mn>0</mml:mn>
                              </mml:msub>
                              <mml:mi>c</mml:mi>
                              <mml:mi>e</mml:mi>
                              <mml:msubsup>
                                <mml:mi>s</mml:mi>
                                <mml:mn>0</mml:mn>
                                <mml:mn>2</mml:mn>
                              </mml:msubsup>
                            </mml:mrow>
                            <mml:mo>)</mml:mo>
                          </mml:mrow>
                        </mml:mrow>
                      </mml:mrow>
                    </mml:mrow>
                  </mml:math>
                </inline-formula>
              </td>
              <td>
                1.208994631 × 10
                <sup>14</sup>
              </td>
              <td>
                Hz·V
                <sup>−</sup>
                <sup>1</sup>
              </td>
              <td>unknown</td>
            </tr>
            <tr>
              <td>
                4. Ratio
                <italic>e</italic>
                /
                <italic>h =</italic>
                2
                <italic>K</italic>
                <sub>0</sub>
              </td>
              <td>
                <italic>e</italic>
                /
                <italic>h</italic>
              </td>
              <td>
                <inline-formula>
                  <mml:math>
                    <mml:mrow>
                      <mml:mrow>
                        <mml:mn>1</mml:mn>
                        <mml:mo>/</mml:mo>
                        <mml:mrow>
                          <mml:mrow>
                            <mml:mo>(</mml:mo>
                            <mml:mrow>
                              <mml:msub>
                                <mml:mi>μ</mml:mi>
                                <mml:mn>0</mml:mn>
                              </mml:msub>
                              <mml:mi>c</mml:mi>
                              <mml:mi>e</mml:mi>
                              <mml:msubsup>
                                <mml:mi>s</mml:mi>
                                <mml:mn>0</mml:mn>
                                <mml:mn>2</mml:mn>
                              </mml:msubsup>
                            </mml:mrow>
                            <mml:mo>)</mml:mo>
                          </mml:mrow>
                        </mml:mrow>
                      </mml:mrow>
                    </mml:mrow>
                  </mml:math>
                </inline-formula>
              </td>
              <td>
                2.41798926 × 10
                <sup>14</sup>
              </td>
              <td>
                Hz·V
                <sup>−</sup>
                <sup>1</sup>
              </td>
              <td>0.0000</td>
            </tr>
            <tr>
              <td>
                5. Josephson constant
                <italic>=</italic>
                4
                <italic>K</italic>
                <sub>0</sub>
              </td>
              <td>
                <italic>K</italic>
                <sub>J</sub>
              </td>
              <td>
                <inline-formula>
                  <mml:math>
                    <mml:mrow>
                      <mml:mrow>
                        <mml:mn>2</mml:mn>
                        <mml:mo>/</mml:mo>
                        <mml:mrow>
                          <mml:mrow>
                            <mml:mo>(</mml:mo>
                            <mml:mrow>
                              <mml:msub>
                                <mml:mi>μ</mml:mi>
                                <mml:mn>0</mml:mn>
                              </mml:msub>
                              <mml:mi>c</mml:mi>
                              <mml:mi>e</mml:mi>
                              <mml:msubsup>
                                <mml:mi>s</mml:mi>
                                <mml:mn>0</mml:mn>
                                <mml:mn>2</mml:mn>
                              </mml:msubsup>
                            </mml:mrow>
                            <mml:mo>)</mml:mo>
                          </mml:mrow>
                        </mml:mrow>
                      </mml:mrow>
                    </mml:mrow>
                  </mml:math>
                </inline-formula>
              </td>
              <td>
                4.835978524 × 10
                <sup>14</sup>
              </td>
              <td>
                Hz·V
                <sup>−</sup>
                <sup>1</sup>
              </td>
              <td>0.0000</td>
            </tr>
            <tr>
              <td>6. Rydberg constant</td>
              <td>
                <italic>R</italic>
                <sub>
                  <sub>∞</sub>
                </sub>
              </td>
              <td>
                <inline-formula>
                  <mml:math>
                    <mml:mrow>
                      <mml:mrow>
                        <mml:mi>m</mml:mi>
                        <mml:mo>/</mml:mo>
                        <mml:mrow>
                          <mml:mrow>
                            <mml:mo>(</mml:mo>
                            <mml:mrow>
                              <mml:mn>8</mml:mn>
                              <mml:msub>
                                <mml:mi>μ</mml:mi>
                                <mml:mn>0</mml:mn>
                              </mml:msub>
                              <mml:msup>
                                <mml:mi>e</mml:mi>
                                <mml:mn>2</mml:mn>
                              </mml:msup>
                              <mml:msubsup>
                                <mml:mi>s</mml:mi>
                                <mml:mn>0</mml:mn>
                                <mml:mn>6</mml:mn>
                              </mml:msubsup>
                            </mml:mrow>
                            <mml:mo>)</mml:mo>
                          </mml:mrow>
                        </mml:mrow>
                      </mml:mrow>
                    </mml:mrow>
                  </mml:math>
                </inline-formula>
              </td>
              <td>
                1.0973731568 × 10
                <sup>7</sup>
              </td>
              <td>
                m
                <sup>−</sup>
                <sup>1</sup>
              </td>
              <td>0.0000</td>
            </tr>
            <tr>
              <td>7. Bohr radius</td>
              <td>
                <italic>a</italic>
                <sub>0</sub>
              </td>
              <td>
                <inline-formula>
                  <mml:math>
                    <mml:mrow>
                      <mml:mrow>
                        <mml:mrow>
                          <mml:msub>
                            <mml:mi>μ</mml:mi>
                            <mml:mn>0</mml:mn>
                          </mml:msub>
                          <mml:msup>
                            <mml:mi>e</mml:mi>
                            <mml:mn>2</mml:mn>
                          </mml:msup>
                          <mml:msubsup>
                            <mml:mi>s</mml:mi>
                            <mml:mn>0</mml:mn>
                            <mml:mn>4</mml:mn>
                          </mml:msubsup>
                        </mml:mrow>
                        <mml:mo>/</mml:mo>
                        <mml:mrow>
                          <mml:mrow>
                            <mml:mo>(</mml:mo>
                            <mml:mrow>
                              <mml:mi>π</mml:mi>
                              <mml:mi>m</mml:mi>
                            </mml:mrow>
                            <mml:mo>)</mml:mo>
                          </mml:mrow>
                        </mml:mrow>
                      </mml:mrow>
                    </mml:mrow>
                  </mml:math>
                </inline-formula>
              </td>
              <td>
                5.291772116 × 10
                <sup>−</sup>
                <sup>11</sup>
              </td>
              <td>m</td>
              <td>0.0000</td>
            </tr>
            <tr>
              <td>8. Bohr magneton</td>
              <td>
                <italic>μ</italic>
                <sub>B</sub>
              </td>
              <td>
                <inline-formula>
                  <mml:math>
                    <mml:mrow>
                      <mml:mrow>
                        <mml:mrow>
                          <mml:msub>
                            <mml:mi>μ</mml:mi>
                            <mml:mn>0</mml:mn>
                          </mml:msub>
                          <mml:mi>c</mml:mi>
                          <mml:msup>
                            <mml:mi>e</mml:mi>
                            <mml:mn>3</mml:mn>
                          </mml:msup>
                          <mml:msubsup>
                            <mml:mi>s</mml:mi>
                            <mml:mn>0</mml:mn>
                            <mml:mn>2</mml:mn>
                          </mml:msubsup>
                        </mml:mrow>
                        <mml:mo>/</mml:mo>
                        <mml:mrow>
                          <mml:mrow>
                            <mml:mo>(</mml:mo>
                            <mml:mrow>
                              <mml:mn>4</mml:mn>
                              <mml:mi>π</mml:mi>
                              <mml:mi>m</mml:mi>
                            </mml:mrow>
                            <mml:mo>)</mml:mo>
                          </mml:mrow>
                        </mml:mrow>
                      </mml:mrow>
                    </mml:mrow>
                  </mml:math>
                </inline-formula>
              </td>
              <td>
                9.274010015 × 10
                <sup>−</sup>
                <sup>24</sup>
              </td>
              <td>
                J·T
                <sup>−</sup>
                <sup>1</sup>
              </td>
              <td>0.0000</td>
            </tr>
            <tr>
              <td>9. Nuclear magneton</td>
              <td>
                <italic>μ</italic>
                <sub>N</sub>
              </td>
              <td>
                <inline-formula>
                  <mml:math>
                    <mml:mrow>
                      <mml:mrow>
                        <mml:mrow>
                          <mml:msub>
                            <mml:mi>μ</mml:mi>
                            <mml:mn>0</mml:mn>
                          </mml:msub>
                          <mml:mi>c</mml:mi>
                          <mml:msup>
                            <mml:mi>e</mml:mi>
                            <mml:mn>3</mml:mn>
                          </mml:msup>
                          <mml:msubsup>
                            <mml:mi>s</mml:mi>
                            <mml:mn>0</mml:mn>
                            <mml:mn>2</mml:mn>
                          </mml:msubsup>
                        </mml:mrow>
                        <mml:mo>/</mml:mo>
                        <mml:mrow>
                          <mml:mrow>
                            <mml:mo>(</mml:mo>
                            <mml:mrow>
                              <mml:mn>4</mml:mn>
                              <mml:mi>π</mml:mi>
                              <mml:msub>
                                <mml:mi>m</mml:mi>
                                <mml:mtext>p</mml:mtext>
                              </mml:msub>
                            </mml:mrow>
                            <mml:mo>)</mml:mo>
                          </mml:mrow>
                        </mml:mrow>
                      </mml:mrow>
                    </mml:mrow>
                  </mml:math>
                </inline-formula>
              </td>
              <td>
                5.050783626 × 10
                <sup>−</sup>
                <sup>27</sup>
              </td>
              <td>
                J·T
                <sup>−</sup>
                <sup>1</sup>
              </td>
              <td>0.0000</td>
            </tr>
          </tbody>
        </table>
      </table-wrap>
      <p><sup>a</sup>It is the difference with “2022 CODATA recommended values” in percent. <ext-link ext-link-type="uri" xlink:href="https://physics.nist.gov/constants">https://physics.nist.gov/constants</ext-link>. <italic><sup>b</sup></italic>This calculation is based on the values provided by Equation (1), Equation (2) and Equation (4). Structural constant <italic>s</italic><sub>0</sub> has not yet been included in the physical quantities at NIST. The exact results from this article should change that and the structural constant of all atoms <italic>s</italic><sub>0</sub> should be included in the universal physical constants.</p>
    </sec>
    <sec id="sec2">
      <title>2. Methods</title>
      <p>This article uses a theoretical and experimental approach. First, the method of Measurement of the Electron Magnetic Moment in [<xref ref-type="bibr" rid="B3">3</xref>] was used. From there, a very precise inverse value of the fine-structure constant was obtained in Equation (1). From Equation (1) express the unknown Planck’s <inline-formula><mml:math display="inline"><mml:mrow><mml:mi> h </mml:mi><mml:mo> = </mml:mo><mml:mrow><mml:mrow><mml:msup><mml:mi> α </mml:mi><mml:mrow><mml:mo> − </mml:mo><mml:mn> 1 </mml:mn></mml:mrow></mml:msup><mml:msup><mml:mi> e </mml:mi><mml:mn> 2 </mml:mn></mml:msup><mml:msub><mml:mi> μ </mml:mi><mml:mn> 0 </mml:mn></mml:msub><mml:mi> c </mml:mi></mml:mrow><mml:mo> / </mml:mo><mml:mn> 2 </mml:mn></mml:mrow></mml:mrow></mml:math></inline-formula> in Equation (2). Since according to article in [<xref ref-type="bibr" rid="B2">2</xref>] Planck’s <italic>h</italic> is equal to <inline-formula><mml:math display="inline"><mml:mrow><mml:mi> h </mml:mi><mml:mo> = </mml:mo><mml:msub><mml:mi> μ </mml:mi><mml:mn> 0 </mml:mn></mml:msub><mml:mi> c </mml:mi><mml:msup><mml:mi> e </mml:mi><mml:mn> 2 </mml:mn></mml:msup><mml:msubsup><mml:mi> s </mml:mi><mml:mn> 0 </mml:mn><mml:mn> 2 </mml:mn></mml:msubsup></mml:mrow></mml:math></inline-formula> then </p>
      <p>from these last two equations it follows <inline-formula><mml:math><mml:mrow><mml:msub><mml:mi> s </mml:mi><mml:mn> 0 </mml:mn></mml:msub><mml:mo> = </mml:mo><mml:msqrt><mml:mrow><mml:mfrac><mml:mn> 1 </mml:mn><mml:mn> 2 </mml:mn></mml:mfrac></mml:mrow></mml:msqrt><mml:mo> = </mml:mo><mml:mn> 8.27756 </mml:mn></mml:mrow></mml:math></inline-formula> , that is, Equation (5). </p>
      <p>Planck’s <italic>h</italic> thus derived from the Lecher line as an oscillator is consistent with QED, as can be seen from the article [<xref ref-type="bibr" rid="B2">2</xref>]. Thus, we accurately calculated the structure constant of all atoms <italic>s</italic><sub>0</sub> in the simplest way. <bold>Table 2</bold> shows the significance and value of this calculation of the structural constant of all atoms <italic>s</italic><sub>0</sub>, because through this constant all the values of all 9 interchangeable constants in that <bold>Table 2</bold> are obtained exactly in accordance with NIST 2022 CODATA. This fulfills the prerequisites for declaring the structural constant of all atoms <italic>s</italic><sub>0</sub> as a universal physical constant.</p>
      <p>Maxwell theory with Theory of relativity give good result in describing most phenomena in the atom, such as the radiation of electromagnetic energy, discretization of states in the atom, the determination of stationary orbits, the determination and calculation of the structural constant of the atom <italic>s</italic><sub>0</sub>.</p>
    </sec>
    <sec id="sec3">
      <title>3. Results</title>
      <p>The theory presented here explains that in atoms, in addition to the discrete states <italic>n</italic><sup>+1</sup> = 1, 2, 3, 4 discrete states <italic>n</italic><sup>−</sup><sup>1</sup> = 1, 2, 3, 4, are also present. Therefore, for example, it is possible that in the discrete states <italic>n</italic><sup>−</sup><sup>1</sup> = 126 a hydrogen atom acquires the properties of a neutron. To achieve this, the existence of an electromagnetic oscillator inside the atom is assumed. This oscillator is described using the Lecher transmission line. The Lecher line does not actually exist within an atom however, a mathematical model of that line is used, just a mathematical is used in space exploration without the actual presence of planets in that model.</p>
      <p>In the paper [<xref ref-type="bibr" rid="B2">2</xref>] it was shown that an oscillator derived from the Lecher line corresponds to an atom as an oscillator according to QED (Quantum electrodynamics). Thus, the emitted or absorbed electromagnetic energy of the atom is proportional to the natural frequency <italic>f</italic><sub>n</sub> of that oscillator and the quantity <inline-formula><mml:math display="inline"><mml:mrow><mml:mi> h </mml:mi><mml:mo> = </mml:mo><mml:msub><mml:mi> μ </mml:mi><mml:mn> 0 </mml:mn></mml:msub><mml:mi> c </mml:mi><mml:msup><mml:mi> e </mml:mi><mml:mn> 2 </mml:mn></mml:msup><mml:msubsup><mml:mi> s </mml:mi><mml:mn> 0 </mml:mn><mml:mn> 2 </mml:mn></mml:msubsup></mml:mrow></mml:math></inline-formula> , which by definition is Planck’s constant. Provided that <italic>s</italic><sub>0</sub> is constant, which the measurements in <bold>Table 1</bold> show, this is a different way to derive Planck’s constant within the framework of QED. In this case, the natural frequency of the oscillator <italic>f</italic><sub>n</sub> is equal to [<xref ref-type="bibr" rid="B2">2</xref>]:</p>
      <disp-formula id="FD13">
        <mml:math>
          <mml:mrow>
            <mml:msub>
              <mml:mi>f</mml:mi>
              <mml:mtext>n</mml:mtext>
            </mml:msub>
            <mml:mo>=</mml:mo>
            <mml:mfrac>
              <mml:mrow>
                <mml:mi>m</mml:mi>
                <mml:mi>c</mml:mi>
                <mml:msup>
                  <mml:mi>z</mml:mi>
                  <mml:mn>2</mml:mn>
                </mml:msup>
                <mml:msup>
                  <mml:mi>Z</mml:mi>
                  <mml:mn>2</mml:mn>
                </mml:msup>
              </mml:mrow>
              <mml:mrow>
                <mml:mn>8</mml:mn>
                <mml:msup>
                  <mml:mi>e</mml:mi>
                  <mml:mn>2</mml:mn>
                </mml:msup>
                <mml:msub>
                  <mml:mi>μ</mml:mi>
                  <mml:mn>0</mml:mn>
                </mml:msub>
                <mml:msup>
                  <mml:mrow>
                    <mml:mrow>
                      <mml:mo>(</mml:mo>
                      <mml:mrow>
                        <mml:msup>
                          <mml:mi>n</mml:mi>
                          <mml:mrow>
                            <mml:mo>±</mml:mo>
                            <mml:mn>1</mml:mn>
                          </mml:mrow>
                        </mml:msup>
                      </mml:mrow>
                      <mml:mo>)</mml:mo>
                    </mml:mrow>
                  </mml:mrow>
                  <mml:mn>2</mml:mn>
                </mml:msup>
                <mml:msubsup>
                  <mml:mi>s</mml:mi>
                  <mml:mn>0</mml:mn>
                  <mml:mn>6</mml:mn>
                </mml:msubsup>
                <mml:msqrt>
                  <mml:mrow>
                    <mml:mn>1</mml:mn>
                    <mml:mo>−</mml:mo>
                    <mml:msup>
                      <mml:mrow>
                        <mml:mrow>
                          <mml:mo>(</mml:mo>
                          <mml:mrow>
                            <mml:mfrac>
                              <mml:mn>1</mml:mn>
                              <mml:mrow>
                                <mml:msup>
                                  <mml:mi>n</mml:mi>
                                  <mml:mrow>
                                    <mml:mo>±</mml:mo>
                                    <mml:mn>1</mml:mn>
                                  </mml:mrow>
                                </mml:msup>
                              </mml:mrow>
                            </mml:mfrac>
                            <mml:mfrac>
                              <mml:mrow>
                                <mml:mi>z</mml:mi>
                                <mml:mi>Z</mml:mi>
                              </mml:mrow>
                              <mml:mrow>
                                <mml:mn>2</mml:mn>
                                <mml:msubsup>
                                  <mml:mi>s</mml:mi>
                                  <mml:mn>0</mml:mn>
                                  <mml:mn>2</mml:mn>
                                </mml:msubsup>
                              </mml:mrow>
                            </mml:mfrac>
                          </mml:mrow>
                          <mml:mo>)</mml:mo>
                        </mml:mrow>
                      </mml:mrow>
                      <mml:mn>2</mml:mn>
                    </mml:msup>
                  </mml:mrow>
                </mml:msqrt>
              </mml:mrow>
            </mml:mfrac>
          </mml:mrow>
        </mml:math>
      </disp-formula>
      <p>The maximum number <italic>Z</italic> = <italic>Z</italic><sub>max</sub> in periodic table, not counting isotopes, is determined by the velocity <italic>v</italic><sub>max</sub>, which can be reached by an electron (<italic>z</italic> = 1) in its first </p>
      <p>shell (<italic>n</italic><sup>±1</sup> = 1) relative to the speed of light, <italic>i.e</italic>. when <inline-formula><mml:math><mml:mrow><mml:msub><mml:mi> β </mml:mi><mml:mrow><mml:mi> max </mml:mi></mml:mrow></mml:msub><mml:mo> = </mml:mo><mml:mfrac><mml:mrow><mml:msub><mml:mi> v </mml:mi><mml:mrow><mml:mi> max </mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mi> c </mml:mi></mml:mfrac><mml:mo> = </mml:mo><mml:mfrac><mml:mn> 1 </mml:mn><mml:mrow><mml:msup><mml:mi> n </mml:mi><mml:mrow><mml:mo> ± </mml:mo><mml:mn> 1 </mml:mn></mml:mrow></mml:msup></mml:mrow></mml:mfrac><mml:mfrac><mml:mrow><mml:mi> z </mml:mi><mml:msub><mml:mi> Z </mml:mi><mml:mrow><mml:mi> max </mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:mn> 2 </mml:mn><mml:msubsup><mml:mi> s </mml:mi><mml:mn> 0 </mml:mn><mml:mn> 2 </mml:mn></mml:msubsup></mml:mrow></mml:mfrac><mml:mo> = </mml:mo><mml:mn> 1 </mml:mn></mml:mrow></mml:math></inline-formula> . </p>
      <p>For <italic>z</italic> = 1 and <italic>n</italic> = 1 <inline-formula><mml:math><mml:mrow><mml:msub><mml:mi> Z </mml:mi><mml:mrow><mml:mi> max </mml:mi></mml:mrow></mml:msub><mml:mo> = </mml:mo><mml:mn> 2 </mml:mn><mml:msubsup><mml:mi> s </mml:mi><mml:mn> 0 </mml:mn><mml:mn> 2 </mml:mn></mml:msubsup><mml:mo> = </mml:mo><mml:mn> 137.035999166 </mml:mn></mml:mrow></mml:math></inline-formula> . Since this number is related to the maximum speed of electrons in an atom, this number does not necessarily have to be a whole number.</p>
    </sec>
    <sec id="sec4">
      <title>4. Conclusions</title>
      <p>First, the method of Measurement of the Electron Magnetic Moment in [<xref ref-type="bibr" rid="B3">3</xref>] was used. From there, a very precise inverse value of the fine-structure constant was obtained in Equation (1). From Equation (1) express the unknown Planck’s <inline-formula><mml:math display="inline"><mml:mrow><mml:mi> h </mml:mi><mml:mo> = </mml:mo><mml:mrow><mml:mrow><mml:msup><mml:mi> α </mml:mi><mml:mrow><mml:mo> − </mml:mo><mml:mn> 1 </mml:mn></mml:mrow></mml:msup><mml:msup><mml:mi> e </mml:mi><mml:mn> 2 </mml:mn></mml:msup><mml:msub><mml:mi> μ </mml:mi><mml:mn> 0 </mml:mn></mml:msub><mml:mi> c </mml:mi></mml:mrow><mml:mo> / </mml:mo><mml:mn> 2 </mml:mn></mml:mrow></mml:mrow></mml:math></inline-formula> in Equation (2). Since according to article in [<xref ref-type="bibr" rid="B2">2</xref>] Planck’s <italic>h</italic> is equal </p>
      <p>to <inline-formula><mml:math display="inline"><mml:mrow><mml:mi> h </mml:mi><mml:mo> = </mml:mo><mml:msub><mml:mi> μ </mml:mi><mml:mn> 0 </mml:mn></mml:msub><mml:mi> c </mml:mi><mml:msup><mml:mi> e </mml:mi><mml:mn> 2 </mml:mn></mml:msup><mml:msubsup><mml:mi> s </mml:mi><mml:mn> 0 </mml:mn><mml:mn> 2 </mml:mn></mml:msubsup></mml:mrow></mml:math></inline-formula> then from these last two equations it follows <inline-formula><mml:math><mml:mrow><mml:msub><mml:mi> s </mml:mi><mml:mn> 0 </mml:mn></mml:msub><mml:mo> = </mml:mo><mml:msqrt><mml:mrow><mml:mfrac><mml:mn> 1 </mml:mn><mml:mn> 2 </mml:mn></mml:mfrac></mml:mrow></mml:msqrt><mml:mo> = </mml:mo><mml:mn> 8.27756 </mml:mn></mml:mrow></mml:math></inline-formula> , </p>
      <p>that is, Equation (5). Thus, we accurately calculated the structure constant of all atoms <italic>s</italic><sub>0</sub> in the simplest way. <bold>Table 2</bold> shows the significance and value of this calculation of the structural constant of all atoms <italic>s</italic><sub>0</sub>, because through this constant all the values of all 9 interchangeable constants in that <bold>Table 2</bold> are obtained exactly in accordance with NIST 2022 CODATA. This fulfills the prerequisites for declaring the structural constant of all atoms <italic>s</italic><sub>0</sub> as a universal physical constant.</p>
      <p>It is crucial for this article that it directly adopts the results for the fine-structure constant <inline-formula><mml:math display="inline"><mml:mrow><mml:mi> α </mml:mi><mml:mo> = </mml:mo><mml:mrow><mml:mrow><mml:msup><mml:mi> e </mml:mi><mml:mn> 2 </mml:mn></mml:msup></mml:mrow><mml:mo> / </mml:mo><mml:mrow><mml:mrow><mml:mo> ( </mml:mo><mml:mrow><mml:mn> 2 </mml:mn><mml:msub><mml:mi> ε </mml:mi><mml:mn> 0 </mml:mn></mml:msub><mml:mi> h </mml:mi><mml:mi> c </mml:mi></mml:mrow><mml:mo> ) </mml:mo></mml:mrow></mml:mrow></mml:mrow></mml:mrow></mml:math></inline-formula> obtained from the article [<xref ref-type="bibr" rid="B3">3</xref>]. It is important to note that in this expression Planck’s <italic>h</italic> is considered a variable, <inline-formula><mml:math display="inline"><mml:mrow><mml:mi> h </mml:mi><mml:mo> = </mml:mo><mml:msub><mml:mi> μ </mml:mi><mml:mn> 0 </mml:mn></mml:msub><mml:mi> c </mml:mi><mml:msup><mml:mi> e </mml:mi><mml:mn> 2 </mml:mn></mml:msup><mml:msubsup><mml:mi> s </mml:mi><mml:mn> 0 </mml:mn><mml:mn> 2 </mml:mn></mml:msubsup></mml:mrow></mml:math></inline-formula> , the value of which has yet to be determined. By equating Planck’s <italic>h</italic> from the previous two expressions, it is possible to calculate the structural constant <italic>s</italic><sub>0</sub> of all atoms:</p>
      <p><inline-formula><mml:math><mml:mrow><mml:msub><mml:mi> s </mml:mi><mml:mn> 0 </mml:mn></mml:msub><mml:mo> = </mml:mo><mml:msqrt><mml:mrow><mml:mfrac><mml:mn> 1 </mml:mn><mml:mn> 2 </mml:mn></mml:mfrac></mml:mrow></mml:msqrt><mml:mo> = </mml:mo><mml:mn> 8.27756 </mml:mn></mml:mrow></mml:math></inline-formula> . As can be seen from <bold>Table 2</bold>, this has achieved an important </p>
      <p>goal. Namely, now with the help of eight initial constants (<italic>s</italic><sub>0</sub>, <italic>B</italic>, 1/<italic>B</italic>, <italic>c</italic>, <italic>μ</italic><sub>0</sub>, <italic>e</italic>, <italic>m</italic>, <italic>m</italic><sub>p</sub>), nine other constants (<italic>α</italic>, <italic>R</italic><sub>K</sub>,<italic>h</italic>, <italic>e</italic>/<italic>h</italic>,<italic>K</italic><sub>J</sub>, <italic>R</italic><sub><sub>∞</sub></sub>, <italic>a</italic><sub>0</sub>, <italic>μ</italic><sub>B</sub>, <italic>μ</italic><sub>N</sub>; <ext-link ext-link-type="uri" xlink:href="https://physics.nist.gov/constants">https://physics.nist.gov/constants</ext-link>) are converted into interchangeable. It is important to note that all of these 9 obtained quantities have values equal to those of NIST in 2022 CODATA. This means that the structural constant of all atoms derived here, <italic>s</italic><sub>0</sub> = 8.7756, can be taken as a new universal physical constant, with which constant is all this simple and easy to do. The method of calculating all 9 physical quantities using that structural constant <italic>s</italic><sub>0</sub> is listed in <bold>Table 2</bold>, see the formulas in that table.</p>
    </sec>
    <sec id="sec5">
      <title>Acknowledgements</title>
      <p>I would like to thank Tomislav Ivezić, Davor Horvatić, Filip Vučić. Branko Kuzmanović supported the idea about the relativistic increase in the mass of the proton to the level of the mass of the neutron and thus the increase in the gravitational field of the isotope. I would like to thank Sonja Fištrek, Nikola Blažević, Srebrenka Ursić, Damir Vuk, Zlatko Voloder, Daobor Belamarić, Josip Silović, Krunomir Dvorski, Anton Lipovka, Eytan Suchard, Stipe Kutleša, Josip Zdenković, Perica Babić, Draženko Jakovac, Zdravko Berić, Slavica Lovrin, Mirjana Moslavac, Fikreta Kovačević, Ksenija Plantak, Branko Žaja, Strahimir Sučić, Jože Muhič and my family for their support in my research.</p>
    </sec>
  </body>
  <back>
    <ref-list>
      <title>References</title>
      <ref id="B1">
        <label>1.</label>
        <citation-alternatives>
          <mixed-citation publication-type="journal">Perkovac, M. (2026) Fine-Structure Constant Derived from the Structural Constant of All Atoms. <italic>Journal of Applied Mathematics and Physics</italic>, 14, 480-498. https://doi.org/10.4236/jamp.2026.141025 <pub-id pub-id-type="doi">10.4236/jamp.2026.141025</pub-id><ext-link ext-link-type="uri" xlink:href="https://doi.org/10.4236/jamp.2026.141025">https://doi.org/10.4236/jamp.2026.141025</ext-link></mixed-citation>
          <element-citation publication-type="journal">
            <person-group person-group-type="author">
              <string-name>Perkovac, M.</string-name>
            </person-group>
            <year>2026</year>
            <article-title>Fine-Structure Constant Derived from the Structural Constant of All Atoms</article-title>
            <source>Journal of Applied Mathematics and Physics</source>
            <volume>14</volume>
            <pub-id pub-id-type="doi">10.4236/jamp.2026.141025</pub-id>
          </element-citation>
        </citation-alternatives>
      </ref>
      <ref id="B2">
        <label>2.</label>
        <citation-alternatives>
          <mixed-citation publication-type="journal">Perkovac, M. (2025) Discrete States in Atoms as a Consequence of Maxwell’s Equations and the Theory of Relativity. <italic>International Journal of Statistics and Data Science</italic>, 1, 19-37. https://www.hillpublisher.com/ArticleDetails/5225 https://doi.org/10.26855/ijsds.2025.12.003 <pub-id pub-id-type="doi">10.26855/ijsds.2025.12.003</pub-id><ext-link ext-link-type="uri" xlink:href="https://doi.org/10.26855/ijsds.2025.12.003">https://doi.org/10.26855/ijsds.2025.12.003</ext-link></mixed-citation>
          <element-citation publication-type="journal">
            <person-group person-group-type="author">
              <string-name>Perkovac, M.</string-name>
            </person-group>
            <year>2025</year>
            <article-title>Discrete States in Atoms as a Consequence of Maxwell’s Equations and the Theory of Relativity</article-title>
            <source>International Journal of Statistics and Data Science</source>
            <volume>1</volume>
            <pub-id pub-id-type="doi">10.26855/ijsds.2025.12.003</pub-id>
          </element-citation>
        </citation-alternatives>
      </ref>
      <ref id="B3">
        <label>3.</label>
        <citation-alternatives>
          <mixed-citation publication-type="journal">Fan, X., Myers, T.G., Sukra, B.A.D. and Gabrielse, G. (2023) Measurement of the Electron Magnetic Moment. <italic>Physical Review Letters</italic>, 130, Article ID: 071801. https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.130.071801 https://doi.org/10.26226/m.6275705b66d5dcf63a311510 <pub-id pub-id-type="doi">10.26226/m.6275705b66d5dcf63a311510</pub-id><ext-link ext-link-type="uri" xlink:href="https://doi.org/10.26226/m.6275705b66d5dcf63a311510">https://doi.org/10.26226/m.6275705b66d5dcf63a311510</ext-link></mixed-citation>
          <element-citation publication-type="journal">
            <person-group person-group-type="author">
              <string-name>Fan, X.</string-name>
              <string-name>Myers, T.G.</string-name>
              <string-name>Sukra, B.A.D.</string-name>
              <string-name>Gabrielse, G.</string-name>
            </person-group>
            <year>2023</year>
            <article-title>Measurement of the Electron Magnetic Moment</article-title>
            <source>Physical Review Letters</source>
            <volume>130</volume>
            <fpage>071801</fpage>
            <elocation-id>ID</elocation-id>
            <pub-id pub-id-type="doi">10.26226/m.6275705b66d5dcf63a311510</pub-id>
          </element-citation>
        </citation-alternatives>
      </ref>
      <ref id="B4">
        <label>4.</label>
        <citation-alternatives>
          <mixed-citation publication-type="journal">Perkovac, M. (2024) New Physical Quantity and Unit of Type of Substance. <italic>Journal of Scientific &amp; Technical Research</italic>, 58. https://biomedres.us/fulltexts/BJSTR.MS.ID.009182.php https://doi.org/10.26717/BJSTR.2024.58.009182 <pub-id pub-id-type="doi">10.26717/BJSTR.2024.58.009182</pub-id><ext-link ext-link-type="uri" xlink:href="https://doi.org/10.26717/BJSTR.2024.58.009182">https://doi.org/10.26717/BJSTR.2024.58.009182</ext-link></mixed-citation>
          <element-citation publication-type="journal">
            <person-group person-group-type="author">
              <string-name>Perkovac, M.</string-name>
            </person-group>
            <year>2024</year>
            <article-title>New Physical Quantity and Unit of Type of Substance</article-title>
            <source>Journal of Scientific &amp; Technical Research</source>
            <volume>58</volume>
            <pub-id pub-id-type="doi">10.26717/BJSTR.2024.58.009182</pub-id>
          </element-citation>
        </citation-alternatives>
      </ref>
    </ref-list>
  </back>
</article>