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interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Is%C3%B2tops_del_cobalt" title="Isòtops del cobalt – Catalan" lang="ca" hreflang="ca" data-title="Isòtops del cobalt" data-language-autonym="Català" data-language-local-name="Catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cv mw-list-item"><a href="https://cv.wikipedia.org/wiki/%D0%9A%D0%BE%D0%B1%D0%B0%D0%BB%D1%8C%D1%82_%D0%B8%D0%B7%D0%BE%D1%82%D0%BE%D0%BF%C4%95%D1%81%D0%B5%D0%BC" title="Кобальт изотопĕсем – Chuvash" lang="cv" hreflang="cv" data-title="Кобальт изотопĕсем" data-language-autonym="Чӑвашла" data-language-local-name="Chuvash" class="interlanguage-link-target"><span>Чӑвашла</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Izotopy_kobaltu" title="Izotopy kobaltu – Czech" lang="cs" hreflang="cs" data-title="Izotopy kobaltu" data-language-autonym="Čeština" data-language-local-name="Czech" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Anexo:Is%C3%B3topos_de_cobalto" title="Anexo:Isótopos de cobalto – Spanish" lang="es" hreflang="es" data-title="Anexo:Isótopos de cobalto" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%A7%DB%8C%D8%B2%D9%88%D8%AA%D9%88%D9%BE%E2%80%8C%D9%87%D8%A7%DB%8C_%DA%A9%D8%A8%D8%A7%D9%84%D8%AA" title="ایزوتوپ‌های کبالت – Persian" lang="fa" hreflang="fa" data-title="ایزوتوپ‌های کبالت" data-language-autonym="فارسی" data-language-local-name="Persian" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Isotopes_du_cobalt" title="Isotopes du cobalt – French" lang="fr" hreflang="fr" data-title="Isotopes du cobalt" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%BD%94%EB%B0%9C%ED%8A%B8_%EB%8F%99%EC%9C%84_%EC%9B%90%EC%86%8C" title="코발트 동위 원소 – Korean" lang="ko" hreflang="ko" data-title="코발트 동위 원소" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Isotop_kobalt" title="Isotop kobalt – Indonesian" lang="id" hreflang="id" data-title="Isotop kobalt" data-language-autonym="Bahasa Indonesia" data-language-local-name="Indonesian" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/A_kobalt_izot%C3%B3pjai" title="A kobalt izotópjai – Hungarian" lang="hu" hreflang="hu" data-title="A kobalt izotópjai" data-language-autonym="Magyar" data-language-local-name="Hungarian" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Isotopen_van_kobalt" title="Isotopen van kobalt – Dutch" lang="nl" hreflang="nl" data-title="Isotopen van kobalt" data-language-autonym="Nederlands" data-language-local-name="Dutch" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E3%82%B3%E3%83%90%E3%83%AB%E3%83%88%E3%81%AE%E5%90%8C%E4%BD%8D%E4%BD%93" title="コバルトの同位体 – Japanese" lang="ja" hreflang="ja" data-title="コバルトの同位体" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li 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.mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><table class="infobox"><caption class="infobox-title"><span class="nowrap"><a href="/wiki/Isotope" title="Isotope">Isotopes</a> of <a href="/wiki/Cobalt" title="Cobalt">cobalt</a> <style data-mw-deduplicate="TemplateStyles:r886047488">.mw-parser-output .nobold{font-weight:normal}</style><span class="nobold">(<sub>27</sub>Co)</span></span></caption><tbody><tr><td colspan="2" class="infobox-full-data"> <table class="wikitable" style="text-align: center; vertical-align: middle; width: 100%; border-collapse: collapse; margin: 0; padding: 0;"> <tbody><tr> <th colspan="3">Main isotopes<sup id="cite_ref-NUBASE2020_1-0" class="reference"><a href="#cite_note-NUBASE2020-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </th> <th colspan="2"><a href="/wiki/Radioactive_decay" title="Radioactive decay">Decay</a> </th></tr> <tr> <th> </th> <th style="padding: 0.1em;"><a href="/wiki/Natural_abundance" title="Natural abundance">abundance</a> </th> <th style="padding: 0.1em;"><a href="/wiki/Half-life" title="Half-life">half-life</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r886047488"><span class="nobold">(<i>t</i><sub>1/2</sub>)</span> </th> <th style="padding: 0.1em;"><a href="/wiki/Radioactive_decay#Types_of_decay" title="Radioactive decay">mode</a> </th> <th style="padding: 0.1em;"><a href="/wiki/Decay_product" title="Decay product">product</a> </th></tr> <tr> <th rowspan="1" style="vertical-align: top;"><sup>56</sup>Co </th> <td rowspan="1" colspan="1" style="vertical-align: top; text-align: center;"><a href="/wiki/Synthetic_radioisotope" title="Synthetic radioisotope">synth</a> </td> <td rowspan="1" colspan="1" style="vertical-align: top; text-align: right;"><span class="nowrap"><span data-sort-value="7006667319040000000♠"></span>77.236 d</span> </td> <td style="text-align: left; vertical-align: top;"><span style="float: left; font-size: 115%; padding: 0;"><a href="/wiki/Beta_plus_decay" class="mw-redirect" title="Beta plus decay">β<sup>+</sup></a></span><span style="float: right; padding-left: 0.2em;"></span> </td> <td style="text-align: right; vertical-align: middle;"><a href="/wiki/Iron-56" title="Iron-56"><sup>56</sup>Fe</a> </td></tr> <tr> <th rowspan="1" style="vertical-align: top;"><sup>57</sup>Co </th> <td rowspan="1" colspan="1" style="vertical-align: top; text-align: center;">synth </td> <td rowspan="1" colspan="1" style="vertical-align: top; text-align: right;"><span class="nowrap"><span data-sort-value="7007234844704000000♠"></span>271.811 d</span> </td> <td style="text-align: left; vertical-align: top;"><span style="float: left; font-size: 115%; padding: 0;"><a href="/wiki/Electron_capture" title="Electron capture">ε</a></span><span style="float: right; padding-left: 0.2em;"></span> </td> <td style="text-align: right; vertical-align: middle;"><a href="/wiki/Iron-57" class="mw-redirect" title="Iron-57"><sup>57</sup>Fe</a> </td></tr> <tr> <th rowspan="1" style="vertical-align: top;"><sup>58</sup>Co </th> <td rowspan="1" colspan="1" style="vertical-align: top; text-align: center;">synth </td> <td rowspan="1" colspan="1" style="vertical-align: top; text-align: right;"><span class="nowrap"><span data-sort-value="7006612092160000000♠"></span>70.844 d</span> </td> <td style="text-align: left; vertical-align: top;"><span style="float: left; font-size: 115%; padding: 0;">β<sup>+</sup></span><span style="float: right; padding-left: 0.2em;"></span> </td> <td style="text-align: right; vertical-align: middle;"><a href="/wiki/Iron-58" class="mw-redirect" title="Iron-58"><sup>58</sup>Fe</a> </td></tr> <tr> <th rowspan="1" style="vertical-align: top;"><sup>59</sup>Co </th> <td rowspan="1" colspan="1" style="vertical-align: top; text-align: right;">100% </td> <td rowspan="1" colspan="3" style="vertical-align: top; text-align: left;"><a href="/wiki/Stable_isotope" class="mw-redirect" title="Stable isotope">stable</a> </td></tr> <tr> <th rowspan="1" style="vertical-align: top;"><a href="/wiki/Cobalt-60" title="Cobalt-60"><sup>60</sup>Co</a> </th> <td rowspan="1" colspan="1" style="vertical-align: top; text-align: center;"><a href="/wiki/Trace_radioisotope" title="Trace radioisotope">trace</a> </td> <td rowspan="1" colspan="1" style="vertical-align: top; text-align: right;"><span class="nowrap"><span data-sort-value="7008166352732640000♠"></span>5.2714 y</span> </td> <td style="text-align: left; vertical-align: top;"><span style="float: left; font-size: 115%; padding: 0;"><a href="/wiki/Beta_minus_decay" class="mw-redirect" title="Beta minus decay">β<sup>−</sup></a></span><span style="float: right; padding-left: 0.2em;">100%</span> </td> <td style="text-align: right; vertical-align: middle;"><a href="/wiki/Nickel-60" class="mw-redirect" title="Nickel-60"><sup>60</sup>Ni</a> </td></tr></tbody></table></td></tr><tr><th colspan="2" class="infobox-header" style="background: #e0e0e0;"><a href="/wiki/Standard_atomic_weight" title="Standard atomic weight">Standard atomic weight</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r886047488"><span class="nobold"><i>A</i><sub>r</sub>°(Co)</span></th></tr><tr><th scope="row" class="infobox-label"></th><td class="infobox-data"><style data-mw-deduplicate="TemplateStyles:r1126788409">.mw-parser-output .plainlist ol,.mw-parser-output .plainlist ul{line-height:inherit;list-style:none;margin:0;padding:0}.mw-parser-output .plainlist ol li,.mw-parser-output .plainlist ul li{margin-bottom:0}</style><div class="plainlist"><ul><li><span class="nowrap"><span data-sort-value="7001589331940000000♠"></span>58.933<span style="margin-left:.25em;">194</span><span style="margin-left:0.3em;margin-right:0.15em;">±</span>0.000<span style="margin-left:.25em;">003</span></span><sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup></li><li><span class="nowrap"><span data-sort-value="7001589330000000000♠"></span>58.933<span style="margin-left:0.3em;margin-right:0.15em;">±</span>0.001</span> (<a href="/wiki/Standard_atomic_weight#Abridged_atomic_weight" title="Standard atomic weight">abridged</a>)<sup id="cite_ref-CIAAW2021_3-0" class="reference"><a href="#cite_note-CIAAW2021-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup></li></ul></div></td></tr><tr><td colspan="2" class="infobox-below noprint" style="background: #e8e8e8;"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist ol ol,.mw-parser-output .hlist ol ul,.mw-parser-output .hlist ul dl,.mw-parser-output .hlist ul ol,.mw-parser-output .hlist ul ul{display:inline}.mw-parser-output .hlist .mw-empty-li{display:none}.mw-parser-output .hlist dt::after{content:": "}.mw-parser-output .hlist dd::after,.mw-parser-output .hlist li::after{content:" · ";font-weight:bold}.mw-parser-output .hlist dd:last-child::after,.mw-parser-output .hlist dt:last-child::after,.mw-parser-output .hlist li:last-child::after{content:none}.mw-parser-output .hlist dd dd:first-child::before,.mw-parser-output .hlist dd dt:first-child::before,.mw-parser-output .hlist dd li:first-child::before,.mw-parser-output .hlist dt dd:first-child::before,.mw-parser-output .hlist dt dt:first-child::before,.mw-parser-output .hlist dt li:first-child::before,.mw-parser-output .hlist li dd:first-child::before,.mw-parser-output .hlist li dt:first-child::before,.mw-parser-output .hlist li li:first-child::before{content:" (";font-weight:normal}.mw-parser-output .hlist dd dd:last-child::after,.mw-parser-output .hlist dd dt:last-child::after,.mw-parser-output .hlist dd li:last-child::after,.mw-parser-output .hlist dt dd:last-child::after,.mw-parser-output .hlist dt dt:last-child::after,.mw-parser-output .hlist dt li:last-child::after,.mw-parser-output .hlist li dd:last-child::after,.mw-parser-output .hlist li dt:last-child::after,.mw-parser-output .hlist li li:last-child::after{content:")";font-weight:normal}.mw-parser-output .hlist ol{counter-reset:listitem}.mw-parser-output .hlist ol>li{counter-increment:listitem}.mw-parser-output .hlist ol>li::before{content:" "counter(listitem)"\a0 "}.mw-parser-output .hlist dd ol>li:first-child::before,.mw-parser-output .hlist dt ol>li:first-child::before,.mw-parser-output .hlist li ol>li:first-child::before{content:" ("counter(listitem)"\a0 "}</style><style data-mw-deduplicate="TemplateStyles:r1239400231">.mw-parser-output .navbar{display:inline;font-size:88%;font-weight:normal}.mw-parser-output .navbar-collapse{float:left;text-align:left}.mw-parser-output .navbar-boxtext{word-spacing:0}.mw-parser-output .navbar ul{display:inline-block;white-space:nowrap;line-height:inherit}.mw-parser-output .navbar-brackets::before{margin-right:-0.125em;content:"[ "}.mw-parser-output .navbar-brackets::after{margin-left:-0.125em;content:" ]"}.mw-parser-output .navbar li{word-spacing:-0.125em}.mw-parser-output .navbar a>span,.mw-parser-output .navbar a>abbr{text-decoration:inherit}.mw-parser-output .navbar-mini abbr{font-variant:small-caps;border-bottom:none;text-decoration:none;cursor:inherit}.mw-parser-output .navbar-ct-full{font-size:114%;margin:0 7em}.mw-parser-output .navbar-ct-mini{font-size:114%;margin:0 4em}html.skin-theme-clientpref-night .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}@media(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}}@media print{.mw-parser-output .navbar{display:none!important}}</style><div class="navbar plainlinks hlist"><ul><li class="nv-view"><a href="/wiki/Template:Infobox_cobalt_isotopes" title="Template:Infobox cobalt isotopes"><span title="View this template">view</span></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Infobox_cobalt_isotopes" class="mw-redirect" title="Template talk:Infobox cobalt isotopes"><span title="Discuss this template">talk</span></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Infobox_cobalt_isotopes" title="Special:EditPage/Template:Infobox cobalt isotopes"><span title="Edit this template">edit</span></a></li></ul></div></td></tr></tbody></table> <p>Naturally occurring <a href="/wiki/Cobalt" title="Cobalt">cobalt</a>, Co, consists of a single stable <a href="/wiki/Isotope" title="Isotope">isotope</a>, <sup>59</sup>Co (thus, cobalt is a <a href="/wiki/Mononuclidic_element" title="Mononuclidic element">mononuclidic</a> element). Twenty-eight <a href="/wiki/Radioisotope" class="mw-redirect" title="Radioisotope">radioisotopes</a> have been characterized; the most stable are <a href="/wiki/Cobalt-60" title="Cobalt-60"><sup>60</sup>Co</a> with a <a href="/wiki/Half-life" title="Half-life">half-life</a> of 5.2714 years, <sup>57</sup>Co (271.811 days), <sup>56</sup>Co (77.236 days), and <sup>58</sup>Co (70.844 days). All other isotopes have half-lives of less than 18 hours and most of these have half-lives of less than 1 second. This element also has 19 <a href="/wiki/Meta_state" class="mw-redirect" title="Meta state">meta states</a>, of which the most stable is <sup>58m1</sup>Co with a half-life of 8.853 h. </p><p>The isotopes of cobalt range in <a href="/wiki/Atomic_weight" class="mw-redirect" title="Atomic weight">atomic weight</a> from <sup>50</sup>Co to <sup>78</sup>Co. The main <a href="/wiki/Decay_mode" class="mw-redirect" title="Decay mode">decay mode</a> for isotopes with atomic mass less than that of the stable isotope, <sup>59</sup>Co, is <a href="/wiki/Electron_capture" title="Electron capture">electron capture</a> and the main mode of decay for those of greater than 59 atomic mass units is <a href="/wiki/Beta_decay" title="Beta decay">beta decay</a>. The main <a href="/wiki/Decay_product" title="Decay product">decay products</a> before <sup>59</sup>Co are <a href="/wiki/Iron" title="Iron">iron</a> isotopes and the main products after are <a href="/wiki/Nickel" title="Nickel">nickel</a> isotopes. </p><p>Radioisotopes can be produced by various <a href="/wiki/Nuclear_reaction" title="Nuclear reaction">nuclear reactions</a>. For example, <sup>57</sup>Co is produced by <a href="/wiki/Cyclotron" title="Cyclotron">cyclotron</a> irradiation of iron. The main reaction is the (d,n) reaction <sup>56</sup>Fe + <a href="/wiki/Deuterium" title="Deuterium"><sup>2</sup>H</a> → n + <sup>57</sup>Co.<sup id="cite_ref-57Co-Diaz-production_4-0" class="reference"><a href="#cite_note-57Co-Diaz-production-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="List_of_isotopes">List of isotopes</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Isotopes_of_cobalt&action=edit&section=1" title="Edit section: List of isotopes"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><span class="anchor" id="Cobalt-47"></span><span class="anchor" id="Cobalt-48"></span><span class="anchor" id="Cobalt-49"></span> </p><p><br /> </p> <table class="wikitable sortable" style="font-size: 85%; white-space: nowrap"> <tbody><tr style="vertical-align: top"> <th rowspan="2">Nuclide<br /><sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>n 1<span class="cite-bracket">]</span></a></sup> </th> <th rowspan="1"><a href="/wiki/Atomic_number" title="Atomic number"><i>Z</i></a> </th> <th rowspan="1"><a href="/wiki/Neutron_number" title="Neutron number"><i>N</i></a> </th> <th rowspan="1"><a href="/wiki/Atomic_mass" title="Atomic mass">Isotopic mass</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r886047488"><span class="nobold">(<a href="/wiki/Dalton_(unit)" title="Dalton (unit)">Da</a>)</span><sup id="cite_ref-AME2020_II_6-0" class="reference"><a href="#cite_note-AME2020_II-6"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><br /><sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>n 2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-TMS_8-0" class="reference"><a href="#cite_note-TMS-8"><span class="cite-bracket">[</span>n 3<span class="cite-bracket">]</span></a></sup> </th> <th rowspan="2"><a href="/wiki/Half-life" title="Half-life">Half-life</a><sup id="cite_ref-NUBASE2020_1-1" class="reference"><a href="#cite_note-NUBASE2020-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><br /><sup id="cite_ref-TNN_9-0" class="reference"><a href="#cite_note-TNN-9"><span class="cite-bracket">[</span>n 4<span class="cite-bracket">]</span></a></sup> </th> <th rowspan="2"><a href="/wiki/Decay_mode" class="mw-redirect" title="Decay mode">Decay<br />mode</a><sup id="cite_ref-NUBASE2020_1-2" class="reference"><a href="#cite_note-NUBASE2020-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><br /><sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>n 5<span class="cite-bracket">]</span></a></sup> </th> <th rowspan="2"><a href="/wiki/Decay_product" title="Decay product">Daughter<br />isotope</a><br /><sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>n 6<span class="cite-bracket">]</span></a></sup> </th> <th rowspan="2"><a href="/wiki/Spin_(particle_physics)" class="mw-redirect" title="Spin (particle physics)">Spin</a> and<br /><a href="/wiki/Parity_(physics)#Nuclei" title="Parity (physics)">parity</a><sup id="cite_ref-NUBASE2020_1-3" class="reference"><a href="#cite_note-NUBASE2020-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><br /><sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>n 7<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-TNN_9-1" class="reference"><a href="#cite_note-TNN-9"><span class="cite-bracket">[</span>n 4<span class="cite-bracket">]</span></a></sup> </th> <th rowspan="2"><a href="/wiki/Natural_abundance" title="Natural abundance">Isotopic<br />abundance</a> </th></tr> <tr> <th colspan="3">Excitation energy<sup id="cite_ref-TNN_9-2" class="reference"><a href="#cite_note-TNN-9"><span class="cite-bracket">[</span>n 4<span class="cite-bracket">]</span></a></sup> </th></tr> <tr id="Cobalt-50"> <td rowspan="3"><sup>50</sup>Co </td> <td rowspan="3" style="text-align:right">27 </td> <td rowspan="3" style="text-align:right">23 </td> <td rowspan="3">49.98112(14) </td> <td rowspan="3">38.8(2) ms </td> <td>β<sup>+</sup>, p (70.5%) </td> <td><sup>49</sup>Mn </td> <td rowspan="3">(6+) </td> <td rowspan="3"> </td></tr> <tr> <td>β<sup>+</sup> (29.5%) </td> <td><sup>50</sup>Fe </td></tr> <tr> <td>β<sup>+</sup>, 2p? </td> <td><sup>48</sup>Mn </td></tr> <tr id="Cobalt-51"> <td rowspan="2"><sup>51</sup>Co </td> <td rowspan="2" style="text-align:right">27 </td> <td rowspan="2" style="text-align:right">24 </td> <td rowspan="2">50.970647(52) </td> <td rowspan="2">68.8(19) ms </td> <td>β<sup>+</sup> (96.2%) </td> <td><sup>51</sup>Fe </td> <td rowspan="2">7/2− </td> <td rowspan="2"> </td></tr> <tr> <td>β<sup>+</sup>, p (<3.8%) </td> <td><sup>50</sup>Mn </td></tr> <tr id="Cobalt-52"> <td rowspan="2"><sup>52</sup>Co </td> <td rowspan="2" style="text-align:right">27 </td> <td rowspan="2" style="text-align:right">25 </td> <td rowspan="2">51.9631302(57) </td> <td rowspan="2">111.7(21) ms </td> <td>β<sup>+</sup> </td> <td><sup>52</sup>Fe </td> <td rowspan="2">6+ </td> <td rowspan="2"> </td></tr> <tr> <td>β<sup>+</sup>, p? </td> <td><sup>51</sup>Mn </td></tr> <tr id="Cobalt-52m"> <td rowspan="3" style="text-indent:1em"><sup>52m</sup>Co </td> <td rowspan="3" colspan="3" style="text-indent:2em">376(9) keV </td> <td rowspan="3">102(5) ms </td> <td>β<sup>+</sup> </td> <td><sup>52</sup>Fe </td> <td rowspan="3">2+ </td> <td rowspan="3"> </td></tr> <tr> <td><a href="/wiki/Isomeric_transition" class="mw-redirect" title="Isomeric transition">IT</a>? </td> <td><sup>52</sup>Co </td></tr> <tr> <td>β<sup>+</sup>, p? </td> <td><sup>51</sup>Mn </td></tr> <tr id="Cobalt-53"> <td><sup>53</sup>Co </td> <td style="text-align:right">27 </td> <td style="text-align:right">26 </td> <td>52.9542033(19) </td> <td>244.6(28) ms </td> <td>β<sup>+</sup> </td> <td><sup>53</sup>Fe </td> <td>7/2−# </td> <td> </td></tr> <tr id="Cobalt-53m"> <td rowspan="2" style="text-indent:1em"><sup>53m</sup>Co </td> <td rowspan="2" colspan="3" style="text-indent:2em">3174.3(9) keV </td> <td rowspan="2">250(10) ms </td> <td>β<sup>+</sup>? (~98.5%) </td> <td><sup>53</sup>Fe </td> <td rowspan="2">(19/2−) </td> <td rowspan="2"> </td></tr> <tr> <td>p (~1.5%) </td> <td><sup>52</sup>Fe </td></tr> <tr id="Cobalt-54"> <td><sup>54</sup>Co </td> <td style="text-align:right">27 </td> <td style="text-align:right">27 </td> <td>53.94845908(38) </td> <td>193.27(6) ms </td> <td>β<sup>+</sup> </td> <td><b><sup>54</sup>Fe</b> </td> <td>0+ </td> <td> </td></tr> <tr id="Cobalt-54m"> <td style="text-indent:1em"><sup>54m</sup>Co </td> <td colspan="3" style="text-indent:2em">197.57(10) keV </td> <td>1.48(2) min </td> <td>β<sup>+</sup> </td> <td><b><sup>54</sup>Fe</b> </td> <td>7+ </td> <td> </td></tr> <tr id="Cobalt-55"> <td><sup>55</sup>Co </td> <td style="text-align:right">27 </td> <td style="text-align:right">28 </td> <td>54.94199642(43) </td> <td>17.53(3) h </td> <td>β<sup>+</sup> </td> <td><sup>55</sup>Fe </td> <td>7/2− </td> <td> </td></tr> <tr id="Cobalt-56"> <td><sup>56</sup>Co </td> <td style="text-align:right">27 </td> <td style="text-align:right">29 </td> <td>55.93983803(51) </td> <td>77.236(26) d </td> <td>β<sup>+</sup> </td> <td><b><sup>56</sup>Fe</b> </td> <td>4+ </td> <td> </td></tr> <tr> <td><sup>57</sup>Co </td> <td style="text-align:right">27 </td> <td style="text-align:right">30 </td> <td>56.93628982(55) </td> <td>271.811(32) d </td> <td><a href="/wiki/Electron_capture" title="Electron capture">EC</a> </td> <td><b><sup>57</sup>Fe</b> </td> <td>7/2− </td> <td> </td></tr> <tr id="Cobalt-58"> <td rowspan="2"><sup>58</sup>Co </td> <td rowspan="2" style="text-align:right">27 </td> <td rowspan="2" style="text-align:right">31 </td> <td rowspan="2">57.9357513(12) </td> <td rowspan="2">70.844(20) d </td> <td>EC (85.21%) </td> <td><b><sup>58</sup>Fe</b> </td> <td rowspan="2">2+ </td> <td rowspan="2"> </td></tr> <tr> <td>β<sup>+</sup> (14.79%) </td> <td><b><sup>58</sup>Fe</b> </td></tr> <tr id="Cobalt-58m1"> <td rowspan="2" style="text-indent:1em"><sup>58m1</sup>Co </td> <td rowspan="2" colspan="3" style="text-indent:2em">24.95(6) keV </td> <td rowspan="2">8.853(23) h </td> <td>IT </td> <td><sup>58</sup>Co </td> <td rowspan="2">5+ </td> <td rowspan="2"> </td></tr> <tr> <td>EC (0.00120%) </td> <td><b><sup>58</sup>Fe</b> </td></tr> <tr id="Cobalt-58m2"> <td style="text-indent:1em"><sup>58m2</sup>Co </td> <td colspan="3" style="text-indent:2em">53.15(7) keV </td> <td>10.5(3) μs </td> <td>IT </td> <td><sup>58</sup>Co </td> <td>4+ </td> <td> </td></tr> <tr id="Cobalt-59"> <td><sup>59</sup>Co </td> <td style="text-align:right">27 </td> <td style="text-align:right">32 </td> <td>58.93319352(43) </td> <td colspan="3" style="text-align:center;"><b>Stable</b> </td> <td>7/2− </td> <td>1.0000 </td></tr> <tr> <td><a href="/wiki/Cobalt-60" title="Cobalt-60"><sup>60</sup>Co</a> </td> <td style="text-align:right">27 </td> <td style="text-align:right">33 </td> <td>59.93381554(43) </td> <td>5.2714(6) y </td> <td>β<sup>−</sup> </td> <td><b><sup>60</sup>Ni</b> </td> <td>5+ </td> <td> </td></tr> <tr id="Cobalt-60m"> <td rowspan="2" style="text-indent:1em"><sup>60m</sup>Co </td> <td rowspan="2" colspan="3" style="text-indent:2em">58.59(1) keV </td> <td rowspan="2">10.467(6) min </td> <td>IT (99.75%) </td> <td><sup>60</sup>Co </td> <td rowspan="2">2+ </td> <td rowspan="2"> </td></tr> <tr> <td>β<sup>−</sup> (0.25%) </td> <td><b><sup>60</sup>Ni</b> </td></tr> <tr id="Cobalt-61"> <td><sup>61</sup>Co </td> <td style="text-align:right">27 </td> <td style="text-align:right">34 </td> <td>60.93247603(90) </td> <td>1.649(5) h </td> <td>β<sup>−</sup> </td> <td><b><sup>61</sup>Ni</b> </td> <td>7/2− </td> <td> </td></tr> <tr id="Cobalt-62"> <td><sup>62</sup>Co </td> <td style="text-align:right">27 </td> <td style="text-align:right">35 </td> <td>61.934058(20) </td> <td>1.54(10) min </td> <td>β<sup>−</sup> </td> <td><b><sup>62</sup>Ni</b> </td> <td>(2)+ </td> <td> </td></tr> <tr id="Cobalt-62m"> <td rowspan="2" style="text-indent:1em"><sup>62m</sup>Co </td> <td rowspan="2" colspan="3" style="text-indent:2em">22(5) keV </td> <td rowspan="2">13.86(9) min </td> <td>β<sup>−</sup> (>99.5%) </td> <td><b><sup>62</sup>Ni</b> </td> <td rowspan="2">(5)+ </td> <td rowspan="2"> </td></tr> <tr> <td>IT (<0.5%) </td> <td><sup>62</sup>Co </td></tr> <tr id="Cobalt-63"> <td><sup>63</sup>Co </td> <td style="text-align:right">27 </td> <td style="text-align:right">36 </td> <td>62.933600(20) </td> <td>26.9(4) s </td> <td>β<sup>−</sup> </td> <td><sup>63</sup>Ni </td> <td>7/2− </td> <td> </td></tr> <tr id="Cobalt-64"> <td><sup>64</sup>Co </td> <td style="text-align:right">27 </td> <td style="text-align:right">37 </td> <td>63.935810(21) </td> <td>300(30) ms </td> <td>β<sup>−</sup> </td> <td><b><sup>64</sup>Ni</b> </td> <td>1+ </td> <td> </td></tr> <tr id="Cobalt-64m"> <td rowspan="2" style="text-indent:1em"><sup>64m</sup>Co </td> <td rowspan="2" colspan="3" style="text-indent:2em">107(20) keV </td> <td rowspan="2">300# ms </td> <td>β<sup>−</sup>? </td> <td><b><sup>64</sup>Ni</b> </td> <td rowspan="2">5+# </td> <td rowspan="2"> </td></tr> <tr> <td>IT? </td> <td><sup>64</sup>Co </td></tr> <tr id="Cobalt-65"> <td><sup>65</sup>Co </td> <td style="text-align:right">27 </td> <td style="text-align:right">38 </td> <td>64.9364621(22) </td> <td>1.16(3) s </td> <td>β<sup>−</sup> </td> <td><sup>65</sup>Ni </td> <td>(7/2)− </td> <td> </td></tr> <tr id="Cobalt-66"> <td rowspan="2"><sup>66</sup>Co </td> <td rowspan="2" style="text-align:right">27 </td> <td rowspan="2" style="text-align:right">39 </td> <td rowspan="2">65.939443(15) </td> <td rowspan="2">194(17) ms </td> <td>β<sup>−</sup> </td> <td><sup>66</sup>Ni </td> <td rowspan="2">(1+) </td> <td rowspan="2"> </td></tr> <tr> <td>β<sup>−</sup>, <a href="/wiki/Neutron_emission" title="Neutron emission">n</a>? </td> <td><sup>65</sup>Ni </td></tr> <tr id="Cobalt-66m1"> <td style="text-indent:1em"><sup>66m1</sup>Co </td> <td colspan="3" style="text-indent:2em">175.1(3) keV </td> <td>824(22) ns </td> <td>IT </td> <td><sup>66</sup>Co </td> <td>(3+) </td> <td> </td></tr> <tr id="Cobalt-66m2"> <td style="text-indent:1em"><sup>66m2</sup>Co </td> <td colspan="3" style="text-indent:2em">642(5) keV </td> <td>>100 μs </td> <td>IT </td> <td><sup>66</sup>Co </td> <td>(8−) </td> <td> </td></tr> <tr id="Cobalt-67"> <td rowspan="2"><sup>67</sup>Co </td> <td rowspan="2" style="text-align:right">27 </td> <td rowspan="2" style="text-align:right">40 </td> <td rowspan="2">66.9406096(69) </td> <td rowspan="2">329(28) ms </td> <td>β<sup>−</sup> </td> <td><sup>67</sup>Ni </td> <td rowspan="2">(7/2−) </td> <td rowspan="2"> </td></tr> <tr> <td>β<sup>−</sup>, n? </td> <td><sup>66</sup>Ni </td></tr> <tr id="Cobalt-67m"> <td rowspan="2" style="text-indent:1em"><sup>67m</sup>Co </td> <td rowspan="2" colspan="3" style="text-indent:2em">491.55(11) keV </td> <td rowspan="2">496(33) ms </td> <td>IT (>80%) </td> <td><sup>67</sup>Co </td> <td rowspan="2">(1/2−) </td> <td rowspan="2"> </td></tr> <tr> <td>β<sup>−</sup> </td> <td><sup>67</sup>Ni </td></tr> <tr id="Cobalt-68"> <td rowspan="2"><sup>68</sup>Co </td> <td rowspan="2" style="text-align:right">27 </td> <td rowspan="2" style="text-align:right">41 </td> <td rowspan="2">67.9445594(41) </td> <td rowspan="2">200(20) ms </td> <td>β<sup>−</sup> </td> <td><sup>68</sup>Ni </td> <td rowspan="2">(7−) </td> <td rowspan="2"> </td></tr> <tr> <td>β<sup>−</sup>, n? </td> <td><sup>67</sup>Ni </td></tr> <tr id="Cobalt-68m1"> <td rowspan="2" style="text-indent:1em"><sup>68m1</sup>Co<sup id="cite_ref-order_13-0" class="reference"><a href="#cite_note-order-13"><span class="cite-bracket">[</span>n 8<span class="cite-bracket">]</span></a></sup> </td> <td rowspan="2" colspan="3" style="text-indent:2em">150(150)# keV </td> <td rowspan="2">1.6(3) s </td> <td>β<sup>−</sup> </td> <td><sup>68</sup>Ni </td> <td rowspan="2">(2−) </td> <td rowspan="2"> </td></tr> <tr> <td>β<sup>−</sup>, n (>2.6%) </td> <td><sup>67</sup>Ni </td></tr> <tr id="Cobalt-68m2"> <td style="text-indent:1em"><sup>68m2</sup>Co </td> <td colspan="3" style="text-indent:2em">195(150)# keV </td> <td>101(10) ns </td> <td>IT </td> <td><sup>68</sup>Co </td> <td>(1) </td> <td> </td></tr> <tr id="Cobalt-69"> <td rowspan="2"><sup>69</sup>Co </td> <td rowspan="2" style="text-align:right">27 </td> <td rowspan="2" style="text-align:right">42 </td> <td rowspan="2">68.945909(92) </td> <td rowspan="2">180(20) ms </td> <td>β<sup>−</sup> </td> <td><sup>69</sup>Ni </td> <td rowspan="2">(7/2−) </td> <td rowspan="2"> </td></tr> <tr> <td>β<sup>−</sup>, n? </td> <td><sup>68</sup>Ni </td></tr> <tr id="Cobalt-69m"> <td style="text-indent:1em"><sup>69m</sup>Co<sup id="cite_ref-order_13-1" class="reference"><a href="#cite_note-order-13"><span class="cite-bracket">[</span>n 8<span class="cite-bracket">]</span></a></sup> </td> <td colspan="3" style="text-indent:2em">170(90) keV </td> <td>750(250) ms </td> <td>β<sup>−</sup> </td> <td><sup>69</sup>Ni </td> <td>1/2−# </td> <td> </td></tr> <tr id="Cobalt-70"> <td rowspan="3"><sup>70</sup>Co </td> <td rowspan="3" style="text-align:right">27 </td> <td rowspan="3" style="text-align:right">43 </td> <td rowspan="3">69.950053(12) </td> <td rowspan="3">508(7) ms </td> <td>β<sup>−</sup> </td> <td><sup>70</sup>Ni </td> <td rowspan="3">(1+) </td> <td rowspan="3"> </td></tr> <tr> <td>β<sup>−</sup>, n? </td> <td><sup>69</sup>Ni </td></tr> <tr> <td>β<sup>−</sup>, 2n? </td> <td><sup>68</sup>Ni </td></tr> <tr id="Cobalt-70m"> <td rowspan="4" style="text-indent:1em"><sup>70m</sup>Co<sup id="cite_ref-order_13-2" class="reference"><a href="#cite_note-order-13"><span class="cite-bracket">[</span>n 8<span class="cite-bracket">]</span></a></sup> </td> <td rowspan="4" colspan="3" style="text-indent:2em">200(200)# keV </td> <td rowspan="4">112(7) ms </td> <td>β<sup>−</sup> </td> <td><sup>70</sup>Ni </td> <td rowspan="4">(7−) </td> <td rowspan="4"> </td></tr> <tr> <td>IT? </td> <td><sup>70</sup>Co </td></tr> <tr> <td>β<sup>−</sup>, n? </td> <td><sup>69</sup>Ni </td></tr> <tr> <td>β<sup>−</sup>, 2n? </td> <td><sup>68</sup>Ni </td></tr> <tr id="Cobalt-71"> <td rowspan="2"><sup>71</sup>Co </td> <td rowspan="2" style="text-align:right">27 </td> <td rowspan="2" style="text-align:right">44 </td> <td rowspan="2">70.95237(50) </td> <td rowspan="2">80(3) ms </td> <td>β<sup>−</sup> (97%) </td> <td><sup>71</sup>Ni </td> <td rowspan="2">(7/2−) </td> <td rowspan="2"> </td></tr> <tr> <td>β<sup>−</sup>, n (3%) </td> <td><sup>70</sup>Ni </td></tr> <tr id="Cobalt-72"> <td rowspan="3"><sup>72</sup>Co </td> <td rowspan="3" style="text-align:right">27 </td> <td rowspan="3" style="text-align:right">45 </td> <td rowspan="3">71.95674(32)# </td> <td rowspan="3">51.5(3) ms </td> <td>β<sup>−</sup> (<96%) </td> <td><sup>72</sup>Ni </td> <td rowspan="3">(6−,7−) </td> <td rowspan="3"> </td></tr> <tr> <td>β<sup>−</sup>, n (>4%) </td> <td><sup>71</sup>Ni </td></tr> <tr> <td>β<sup>−</sup>, 2n? </td> <td><sup>70</sup>Ni </td></tr> <tr id="Cobalt-72m"> <td style="text-indent:1em"><sup>72m</sup>Co<sup id="cite_ref-order_13-3" class="reference"><a href="#cite_note-order-13"><span class="cite-bracket">[</span>n 8<span class="cite-bracket">]</span></a></sup> </td> <td colspan="3" style="text-indent:2em">200(200)# keV </td> <td>47.8(5) ms </td> <td>β<sup>−</sup> </td> <td><sup>72</sup>Ni </td> <td>(0+,1+) </td> <td> </td></tr> <tr id="Cobalt-73"> <td rowspan="3"><sup>73</sup>Co </td> <td rowspan="3" style="text-align:right">27 </td> <td rowspan="3" style="text-align:right">46 </td> <td rowspan="3">72.95924(32)# </td> <td rowspan="3">42.0(8) ms </td> <td>β<sup>−</sup> (94%) </td> <td><sup>73</sup>Ni </td> <td rowspan="3">(7/2−) </td> <td rowspan="3"> </td></tr> <tr> <td>β<sup>−</sup>, n (6%) </td> <td><sup>72</sup>Ni </td></tr> <tr> <td>β<sup>−</sup>, 2n? </td> <td><sup>71</sup>Ni </td></tr> <tr id="Cobalt-74"> <td rowspan="3"><sup>74</sup>Co </td> <td rowspan="3" style="text-align:right">27 </td> <td rowspan="3" style="text-align:right">47 </td> <td rowspan="3">73.96399(43)# </td> <td rowspan="3">31.3(13) ms </td> <td>β<sup>−</sup> (82%) </td> <td><sup>74</sup>Ni </td> <td rowspan="3">7−# </td> <td rowspan="3"> </td></tr> <tr> <td>β<sup>−</sup>, n (18%) </td> <td><sup>73</sup>Ni </td></tr> <tr> <td>β<sup>−</sup>, 2n? </td> <td><sup>72</sup>Ni </td></tr> <tr id="Cobalt-75"> <td rowspan="3"><sup>75</sup>Co </td> <td rowspan="3" style="text-align:right">27 </td> <td rowspan="3" style="text-align:right">48 </td> <td rowspan="3">74.96719(43)# </td> <td rowspan="3">26.5(12) ms </td> <td>β<sup>−</sup> (>84%) </td> <td><sup>75</sup>Ni </td> <td rowspan="3">7/2−# </td> <td rowspan="3"> </td></tr> <tr> <td>β<sup>−</sup>, n (<16%) </td> <td><sup>74</sup>Ni </td></tr> <tr> <td>β<sup>−</sup>, 2n? </td> <td><sup>73</sup>Ni </td></tr> <tr id="Cobalt-76"> <td rowspan="3"><sup>76</sup>Co </td> <td rowspan="3" style="text-align:right">27 </td> <td rowspan="3" style="text-align:right">49 </td> <td rowspan="3">75.97245(54)# </td> <td rowspan="3">23(6) ms </td> <td>β<sup>−</sup> </td> <td><sup>76</sup>Ni </td> <td rowspan="3">(8−) </td> <td rowspan="3"> </td></tr> <tr> <td>β<sup>−</sup>, n? </td> <td><sup>75</sup>Ni </td></tr> <tr> <td>β<sup>−</sup>, 2n? </td> <td><sup>74</sup>Ni </td></tr> <tr id="Cobalt-76m1"> <td style="text-indent:1em"><sup>76m1</sup>Co<sup id="cite_ref-order_13-4" class="reference"><a href="#cite_note-order-13"><span class="cite-bracket">[</span>n 8<span class="cite-bracket">]</span></a></sup> </td> <td colspan="3" style="text-indent:2em">100(100)# keV </td> <td>16(4) ms </td> <td>β<sup>−</sup> </td> <td><sup>76</sup>Ni </td> <td>(1−) </td> <td> </td></tr> <tr id="Cobalt-76m2"> <td style="text-indent:1em"><sup>76m2</sup>Co </td> <td colspan="3" style="text-indent:2em">740(100)# keV </td> <td>2.99(27) μs </td> <td>IT </td> <td><sup>76</sup>Co </td> <td>(3+) </td> <td> </td></tr> <tr id="Cobalt-77"> <td rowspan="4"><sup>77</sup>Co </td> <td rowspan="4" style="text-align:right">27 </td> <td rowspan="4" style="text-align:right">50 </td> <td rowspan="4">76.97648(64)# </td> <td rowspan="4">15(6) ms </td> <td>β<sup>−</sup> </td> <td><sup>77</sup>Ni </td> <td rowspan="4">7/2−# </td> <td rowspan="4"> </td></tr> <tr> <td>β<sup>−</sup>, n? </td> <td><sup>76</sup>Ni </td></tr> <tr> <td>β<sup>−</sup>, 2n? </td> <td><sup>75</sup>Ni </td></tr> <tr> <td>β<sup>−</sup>, 3n? </td> <td><sup>74</sup>Ni </td></tr> <tr id="Cobalt-78"> <td><sup>78</sup>Co </td> <td style="text-align:right">27 </td> <td style="text-align:right">51 </td> <td>77.983 55(75)# </td> <td>11# ms<br />[>410 ns] </td> <td>β<sup>−</sup>? </td> <td><sup>78</sup>Ni </td> <td> </td> <td> </td></tr> <tr> <th colspan="20" style="text-align:right; line-height:85%;"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r886047488"><span class="nobold"><i>This table header & footer:</i> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist"><ul><li class="nv-view"><a href="/wiki/Template:Isotopes_table" title="Template:Isotopes table"><span title="View this template">view</span></a></li></ul></div></span> </th></tr></tbody></table> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</a></b></span> <span class="reference-text"><sup>m</sup>Co –  Excited <a href="/wiki/Nuclear_isomer" title="Nuclear isomer">nuclear isomer</a>.</span> </li> <li id="cite_note-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-7">^</a></b></span> <span class="reference-text">( ) –  Uncertainty (1<i>σ</i>) is given in concise form in parentheses after the corresponding last digits.</span> </li> <li id="cite_note-TMS-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-TMS_8-0">^</a></b></span> <span class="reference-text"># –  Atomic mass marked #: value and uncertainty derived not from purely experimental data, but at least partly from trends from the Mass Surface (TMS).</span> </li> <li id="cite_note-TNN-9"><span class="mw-cite-backlink">^ <a href="#cite_ref-TNN_9-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-TNN_9-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-TNN_9-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text"># –  Values marked # are not purely derived from experimental data, but at least partly from trends of neighboring nuclides (TNN).</span> </li> <li id="cite_note-10"><span class="mw-cite-backlink"><b><a href="#cite_ref-10">^</a></b></span> <span class="reference-text"> Modes of decay: <table style="margin-left:1.5em;"> <tbody><tr style="line-height: 1.1em; vertical-align: top"> <td>EC:</td> <td><a href="/wiki/Electron_capture" title="Electron capture">Electron capture</a> </td></tr> <tr style="line-height: 1.1em; vertical-align: top"> <td>IT:</td> <td><a href="/wiki/Isomeric_transition" class="mw-redirect" title="Isomeric transition">Isomeric transition</a> </td></tr> <tr style="line-height: 1.1em; vertical-align: top"> <td>n:</td> <td><a href="/wiki/Neutron_emission" title="Neutron emission">Neutron emission</a> </td></tr> <tr style="line-height: 1.1em; vertical-align: top"> <td>p:</td> <td><a href="/wiki/Proton_emission" title="Proton emission">Proton emission</a> </td></tr></tbody></table></span> </li> <li id="cite_note-11"><span class="mw-cite-backlink"><b><a href="#cite_ref-11">^</a></b></span> <span class="reference-text"><b>Bold symbol</b> as daughter –  Daughter product is stable.</span> </li> <li id="cite_note-12"><span class="mw-cite-backlink"><b><a href="#cite_ref-12">^</a></b></span> <span class="reference-text">( ) spin value –  Indicates spin with weak assignment arguments.</span> </li> <li id="cite_note-order-13"><span class="mw-cite-backlink">^ <a href="#cite_ref-order_13-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-order_13-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-order_13-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-order_13-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-order_13-4"><sup><i><b>e</b></i></sup></a></span> <span class="reference-text">Order of ground state and isomer is uncertain.</span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="Stellar_nucleosynthesis_of_cobalt-56">Stellar nucleosynthesis of cobalt-56</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Isotopes_of_cobalt&action=edit&section=2" title="Edit section: Stellar nucleosynthesis of cobalt-56"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>One of the terminal nuclear reactions in stars prior to <a href="/wiki/Supernova" title="Supernova">supernova</a> produces <a href="/wiki/Isotopes_of_nickel" title="Isotopes of nickel"><sup>56</sup>Ni</a>. Following its production, <sup>56</sup>Ni decays to <sup>56</sup>Co, and then <sup>56</sup>Co subsequently decays to <a href="/wiki/Iron-56" title="Iron-56"><sup>56</sup>Fe</a>. These decay reactions power the luminosity displayed in <a href="/wiki/Light_curve#Supernovae" title="Light curve">light decay curves</a>. Both the light decay and <a href="/wiki/Radioactive_decay" title="Radioactive decay">radioactive decay</a> curves are expected to be exponential. Therefore, the light decay curve should give an indication of the nuclear reactions powering it. This has been confirmed by observation of bolometric light decay curves for <a href="/wiki/SN_1987A" title="SN 1987A">SN 1987A</a>. Between 600 and 800 days after SN1987A occurred, the bolometric light curve decreased at an exponential rate with <a href="/wiki/Half-life" title="Half-life">half-life</a> values from τ<sub>1/2</sub> = 68.6 days to τ<sub>1/2</sub> = 69.6 days.<sup id="cite_ref-14" class="reference"><a href="#cite_note-14"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> The rate at which the luminosity decreased closely matched the exponential decay of <sup>56</sup>Co with a half-life of τ<sub>1/2</sub> = 77.233 days. </p> <div class="mw-heading mw-heading2"><h2 id="Use_of_cobalt_radioisotopes_in_medicine">Use of cobalt radioisotopes in medicine<span class="anchor" id="Cobalt-57"></span><span class="anchor" id="Cobalt-60"></span></h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Isotopes_of_cobalt&action=edit&section=3" title="Edit section: Use of cobalt radioisotopes in medicine"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Cobalt-57 (<sup>57</sup>Co or Co-57) is used in medical tests; it is used as a <a href="/wiki/Radioactive_tracer" title="Radioactive tracer">radiolabel</a> for vitamin B<sub>12</sub> uptake. It is useful for the <a href="/wiki/Schilling_test" title="Schilling test">Schilling test</a>.<sup id="cite_ref-57Co-Diaz-uses_15-0" class="reference"><a href="#cite_note-57Co-Diaz-uses-15"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p><p><a href="/wiki/Cobalt-60" title="Cobalt-60">Cobalt-60</a> (<sup>60</sup>Co or Co-60) is used in <a href="/wiki/Radiation_therapy" title="Radiation therapy">radiotherapy</a>. It produces two <a href="/wiki/Gamma_ray" title="Gamma ray">gamma rays</a> with energies of 1.17 <a href="/wiki/MeV" class="mw-redirect" title="MeV">MeV</a> and 1.33 MeV. The <sup>60</sup>Co source is about 2 cm in <a href="/wiki/Diameter" title="Diameter">diameter</a> and as a result produces a <a href="/wiki/Geometric" class="mw-redirect" title="Geometric">geometric</a> <a href="/wiki/Penumbra" class="mw-redirect" title="Penumbra">penumbra</a>, making the edge of the <a href="/wiki/Radiation" title="Radiation">radiation</a> field fuzzy. The metal has the unfortunate habit of producing fine dust, causing problems with radiation protection. The <sup>60</sup>Co source is useful for about 5 years but even after this point is still very radioactive, and so cobalt machines have fallen from favor in the Western world where <a href="/wiki/Linacs" class="mw-redirect" title="Linacs">Linacs</a> are common. </p> <div class="mw-heading mw-heading2"><h2 id="Industrial_uses_for_radioactive_isotopes">Industrial uses for radioactive isotopes</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Isotopes_of_cobalt&action=edit&section=4" title="Edit section: Industrial uses for radioactive isotopes"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Cobalt-60 (<sup>60</sup>Co) is useful as a gamma ray source because it can be produced in predictable quantities, and for its high <a href="/wiki/Radioactivity" class="mw-redirect" title="Radioactivity">radioactivity</a> simply by exposing natural cobalt to <a href="/wiki/Neutron" title="Neutron">neutrons</a> in a reactor.<sup id="cite_ref-16" class="reference"><a href="#cite_note-16"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> The uses for industrial cobalt include: </p> <ul><li>Sterilization of medical supplies and <a href="/wiki/Medical_waste" class="mw-redirect" title="Medical waste">medical waste</a></li> <li>Radiation treatment of <a href="/wiki/Food_irradiation" title="Food irradiation">foods for sterilization</a> (cold <a href="/wiki/Pasteurization" title="Pasteurization">pasteurization</a>)<sup id="cite_ref-17" class="reference"><a href="#cite_note-17"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup></li> <li>Industrial <a href="/wiki/Radiography" title="Radiography">radiography</a> (e.g., weld integrity radiographs)</li> <li><a href="/wiki/Measurement_of_density" class="mw-redirect" title="Measurement of density">Density measurements</a> (e.g., concrete density measurements)</li> <li>Tank fill height switches</li></ul> <p><sup>57</sup>Co is used as a source in <a href="/wiki/M%C3%B6ssbauer_spectroscopy" title="Mössbauer spectroscopy">Mössbauer spectroscopy</a> of iron-containing samples. Electron capture by <sup>57</sup>Co forms an excited state of the <sup>57</sup>Fe nucleus, which in turn decays to the ground state with the emission of a gamma ray. Measurement of the gamma-ray spectrum provides information about the chemical state of the iron atom in the sample. </p> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Isotopes_of_cobalt&action=edit&section=5" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-NUBASE2020-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-NUBASE2020_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-NUBASE2020_1-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-NUBASE2020_1-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-NUBASE2020_1-3"><sup><i><b>d</b></i></sup></a></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFKondevWangHuangNaimi2021" class="citation journal cs1">Kondev, F. 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Retrieved <span class="nowrap">2010-09-13</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=JPNM+Physics+Isotopes&rft.atitle=Cobalt-57%3A+Uses&rft.aulast=Diaz&rft.aufirst=L.+E.&rft_id=http%3A%2F%2Fwww.med.harvard.edu%2FJPNM%2Fphysics%2Fisotopes%2FCo%2FCo57%2Fuses.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AIsotopes+of+cobalt" class="Z3988"></span></span> </li> <li id="cite_note-16"><span class="mw-cite-backlink"><b><a href="#cite_ref-16">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://radioactiveisotopes.weebly.com/properties-of-cobalt-60.html">"Properties of Cobalt-60"</a>. <i>Radioactive Isotopes</i><span class="reference-accessdate">. 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Retrieved <span class="nowrap">2022-12-09</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=INTERNATIONAL+IRRADIATION+ASSOCIATION&rft.atitle=Beneficial+Uses+of+Cobalt-60&rft_id=https%3A%2F%2Fiiaglobal.com%2Fpublications%2Fbeneficial-uses-of-cobalt-60-2%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AIsotopes+of+cobalt" class="Z3988"></span></span> </li> </ol></div></div> <ul><li>Isotope masses from: <ul><li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFAudiBersillonBlachotWapstra2003" class="citation cs2">Audi, Georges; Bersillon, Olivier; Blachot, Jean; <a href="/wiki/Aaldert_Wapstra" title="Aaldert Wapstra">Wapstra, Aaldert Hendrik</a> (2003), <a rel="nofollow" class="external text" href="https://hal.archives-ouvertes.fr/in2p3-00020241/document">"The N<small>UBASE</small> evaluation of nuclear and decay properties"</a>, <i>Nuclear Physics A</i>, <b>729</b>: 3–128, <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/2003NuPhA.729....3A">2003NuPhA.729....3A</a>, <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1016%2Fj.nuclphysa.2003.11.001">10.1016/j.nuclphysa.2003.11.001</a></cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Nuclear+Physics+A&rft.atitle=The+N%3Csmall%3EUBASE%3C%2Fsmall%3E+evaluation+of+nuclear+and+decay+properties&rft.volume=729&rft.pages=3-128&rft.date=2003&rft_id=info%3Adoi%2F10.1016%2Fj.nuclphysa.2003.11.001&rft_id=info%3Abibcode%2F2003NuPhA.729....3A&rft.aulast=Audi&rft.aufirst=Georges&rft.au=Bersillon%2C+Olivier&rft.au=Blachot%2C+Jean&rft.au=Wapstra%2C+Aaldert+Hendrik&rft_id=https%3A%2F%2Fhal.archives-ouvertes.fr%2Fin2p3-00020241%2Fdocument&rfr_id=info%3Asid%2Fen.wikipedia.org%3AIsotopes+of+cobalt" class="Z3988"></span></li></ul></li> <li>Half-life, spin, and isomer data selected from the following sources. <ul><li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFAudiBersillonBlachotWapstra2003" class="citation cs2">Audi, Georges; Bersillon, Olivier; Blachot, Jean; <a href="/wiki/Aaldert_Wapstra" title="Aaldert Wapstra">Wapstra, Aaldert Hendrik</a> (2003), <a rel="nofollow" class="external text" href="https://hal.archives-ouvertes.fr/in2p3-00020241/document">"The N<small>UBASE</small> evaluation of nuclear and decay properties"</a>, <i>Nuclear Physics A</i>, <b>729</b>: 3–128, <a href="/wiki/Bibcode_(identifier)" class="mw-redirect" title="Bibcode (identifier)">Bibcode</a>:<a rel="nofollow" class="external text" href="https://ui.adsabs.harvard.edu/abs/2003NuPhA.729....3A">2003NuPhA.729....3A</a>, <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1016%2Fj.nuclphysa.2003.11.001">10.1016/j.nuclphysa.2003.11.001</a></cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Nuclear+Physics+A&rft.atitle=The+N%3Csmall%3EUBASE%3C%2Fsmall%3E+evaluation+of+nuclear+and+decay+properties&rft.volume=729&rft.pages=3-128&rft.date=2003&rft_id=info%3Adoi%2F10.1016%2Fj.nuclphysa.2003.11.001&rft_id=info%3Abibcode%2F2003NuPhA.729....3A&rft.aulast=Audi&rft.aufirst=Georges&rft.au=Bersillon%2C+Olivier&rft.au=Blachot%2C+Jean&rft.au=Wapstra%2C+Aaldert+Hendrik&rft_id=https%3A%2F%2Fhal.archives-ouvertes.fr%2Fin2p3-00020241%2Fdocument&rfr_id=info%3Asid%2Fen.wikipedia.org%3AIsotopes+of+cobalt" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFNational_Nuclear_Data_Center" class="citation web cs1"><a href="/wiki/National_Nuclear_Data_Center" title="National Nuclear Data Center">National Nuclear Data Center</a>. <a rel="nofollow" class="external text" href="http://www.nndc.bnl.gov/nudat2/">"NuDat 2.x database"</a>. <a href="/wiki/Brookhaven_National_Laboratory" title="Brookhaven National Laboratory">Brookhaven National Laboratory</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=NuDat+2.x+database&rft.pub=Brookhaven+National+Laboratory&rft.au=National+Nuclear+Data+Center&rft_id=http%3A%2F%2Fwww.nndc.bnl.gov%2Fnudat2%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AIsotopes+of+cobalt" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFHolden2004" class="citation book cs1">Holden, Norman E. (2004). "11. Table of the Isotopes". In Lide, David R. (ed.). <i><a href="/wiki/CRC_Handbook_of_Chemistry_and_Physics" title="CRC Handbook of Chemistry and Physics">CRC Handbook of Chemistry and Physics</a></i> (85th ed.). <a href="/wiki/Boca_Raton,_Florida" title="Boca Raton, Florida">Boca Raton, Florida</a>: <a href="/wiki/CRC_Press" title="CRC Press">CRC Press</a>. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-0-8493-0485-9" title="Special:BookSources/978-0-8493-0485-9"><bdi>978-0-8493-0485-9</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=bookitem&rft.atitle=11.+Table+of+the+Isotopes&rft.btitle=CRC+Handbook+of+Chemistry+and+Physics&rft.place=Boca+Raton%2C+Florida&rft.edition=85th&rft.pub=CRC+Press&rft.date=2004&rft.isbn=978-0-8493-0485-9&rft.aulast=Holden&rft.aufirst=Norman+E.&rfr_id=info%3Asid%2Fen.wikipedia.org%3AIsotopes+of+cobalt" class="Z3988"></span></li></ul></li></ul> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><style data-mw-deduplicate="TemplateStyles:r1236075235">.mw-parser-output .navbox{box-sizing:border-box;border:1px solid #a2a9b1;width:100%;clear:both;font-size:88%;text-align:center;padding:1px;margin:1em auto 0}.mw-parser-output .navbox .navbox{margin-top:0}.mw-parser-output .navbox+.navbox,.mw-parser-output .navbox+.navbox-styles+.navbox{margin-top:-1px}.mw-parser-output .navbox-inner,.mw-parser-output .navbox-subgroup{width:100%}.mw-parser-output .navbox-group,.mw-parser-output .navbox-title,.mw-parser-output .navbox-abovebelow{padding:0.25em 1em;line-height:1.5em;text-align:center}.mw-parser-output .navbox-group{white-space:nowrap;text-align:right}.mw-parser-output .navbox,.mw-parser-output .navbox-subgroup{background-color:#fdfdfd}.mw-parser-output .navbox-list{line-height:1.5em;border-color:#fdfdfd}.mw-parser-output .navbox-list-with-group{text-align:left;border-left-width:2px;border-left-style:solid}.mw-parser-output tr+tr>.navbox-abovebelow,.mw-parser-output tr+tr>.navbox-group,.mw-parser-output tr+tr>.navbox-image,.mw-parser-output tr+tr>.navbox-list{border-top:2px solid #fdfdfd}.mw-parser-output .navbox-title{background-color:#ccf}.mw-parser-output .navbox-abovebelow,.mw-parser-output .navbox-group,.mw-parser-output .navbox-subgroup .navbox-title{background-color:#ddf}.mw-parser-output .navbox-subgroup .navbox-group,.mw-parser-output .navbox-subgroup .navbox-abovebelow{background-color:#e6e6ff}.mw-parser-output .navbox-even{background-color:#f7f7f7}.mw-parser-output .navbox-odd{background-color:transparent}.mw-parser-output .navbox .hlist td dl,.mw-parser-output .navbox .hlist td ol,.mw-parser-output .navbox .hlist td ul,.mw-parser-output .navbox td.hlist dl,.mw-parser-output .navbox td.hlist ol,.mw-parser-output .navbox td.hlist ul{padding:0.125em 0}.mw-parser-output .navbox .navbar{display:block;font-size:100%}.mw-parser-output .navbox-title .navbar{float:left;text-align:left;margin-right:0.5em}body.skin--responsive .mw-parser-output .navbox-image img{max-width:none!important}@media print{body.ns-0 .mw-parser-output .navbox{display:none!important}}</style></div><div role="navigation" class="navbox" aria-labelledby="Isotopes_of_the_chemical_elements" style="padding:3px"><table class="nowraplinks mw-collapsible expanded navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Navbox_element_isotopes" title="Template:Navbox element isotopes"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Navbox_element_isotopes" title="Template talk:Navbox element isotopes"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Navbox_element_isotopes" title="Special:EditPage/Template:Navbox element isotopes"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Isotopes_of_the_chemical_elements" style="font-size:114%;margin:0 4em"><a href="/wiki/Isotope" title="Isotope">Isotopes</a> of the <a href="/wiki/Chemical_element" title="Chemical element">chemical elements</a></div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0;line-height:110%;"><div style="padding:0 0.25em"> <table style="border-spacing:1px;display:block;overflow:auto;width:100%;margin:0 !important"> <tbody><tr style="line-height:125%; vertical-align:top;"> <th style="text-align:right; width:3%; background:transparent"><small><a href="/wiki/Group_(periodic_table)" title="Group (periodic table)">Group</a></small> </th> <th style="background:#e8e8e8; width:5%"><a href="/wiki/Alkali_metal" title="Alkali metal">1</a> </th> <th style="background:#f0f0f0; width:5%"><a href="/wiki/Alkaline_earth_metal" title="Alkaline earth metal">2</a> </th> <td style="width:2%">  </td> <th style="background:#e8e8e8; width:5%"><a href="/wiki/Group_3_element" title="Group 3 element">3</a> </th> <th style="background:#f0f0f0; width:5%"><a href="/wiki/Group_4_element" title="Group 4 element">4</a> </th> <th style="background:#e8e8e8; width:5%"><a href="/wiki/Group_5_element" title="Group 5 element">5</a> </th> <th style="background:#f0f0f0; width:5%"><a href="/wiki/Group_6_element" title="Group 6 element">6</a> </th> <th style="background:#e8e8e8; width:5%"><a href="/wiki/Group_7_element" title="Group 7 element">7</a> </th> <th style="background:#f0f0f0; width:5%"><a href="/wiki/Group_8_element" title="Group 8 element">8</a> </th> <th style="background:#e8e8e8; width:5%"><a href="/wiki/Group_9_element" title="Group 9 element">9</a> </th> <th style="background:#f0f0f0; width:5%"><a href="/wiki/Group_10_element" title="Group 10 element">10</a> </th> <th style="background:#e8e8e8; width:5%"><a href="/wiki/Group_11_element" title="Group 11 element">11</a> </th> <th style="background:#f0f0f0; width:5%"><a href="/wiki/Group_12_element" title="Group 12 element">12</a> </th> <th style="background:#e8e8e8; width:5%"><a href="/wiki/Boron_group" title="Boron group">13</a> </th> <th style="background:#f0f0f0; width:5%"><a href="/wiki/Carbon_group" title="Carbon group">14</a> </th> <th style="background:#e8e8e8; width:5%"><a href="/wiki/Pnictogen" title="Pnictogen">15</a> </th> <th style="background:#f0f0f0; width:5%"><a href="/wiki/Chalcogen" title="Chalcogen">16</a> </th> <th style="background:#e8e8e8; width:5%"><a href="/wiki/Halogen" title="Halogen">17</a> </th> <th style="background:#f0f0f0; width:5%"><a href="/wiki/Noble_gas" title="Noble gas">18</a> </th></tr> <tr style="font-size:85%; line-height:125%; vertical-align:top;"> <th style="text-align:left; vertical-align:bottom; background:transparent"><small><a href="/wiki/Period_(periodic_table)" title="Period (periodic table)">Period</a></small> </th> <td style="background:#e8e8e8;">Hydrogen and<br />alkali metals </td> <td style="background:#f0f0f0;">Alkaline<br />earth metals </td> <td> </td> <td style="background:#e8e8e8;"> </td> <td style="background:#f0f0f0;"> </td> <td style="background:#e8e8e8;"> </td> <td style="background:#f0f0f0;"> </td> <td style="background:#e8e8e8;"> </td> <td style="background:#f0f0f0;"> </td> <td style="background:#e8e8e8;"> </td> <td style="background:#f0f0f0;"> </td> <td style="background:#e8e8e8;"> </td> <td style="background:#f0f0f0;"> </td> <td style="background:#e8e8e8;"> </td> <td style="background:#f0f0f0;"> </td> <td style="background:#e8e8e8;">Pnictogens </td> <td style="background:#f0f0f0;">Chalcogens </td> <td style="background:#e8e8e8;">Halogens </td> <td style="background:#f0f0f0;">Noble gases </td></tr> <tr> <th style="background:transparent"><span title="Period ①" class="nounderlines" style="font-size:150%;"><a href="/wiki/Period_1_element" title="Period 1 element">①</a></span> </th> <td style="padding-left:0.1em; background:#ff9999;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_hydrogen" title="Isotopes of hydrogen">Isotopes</a>  <a href="/wiki/Isotopes_of_hydrogen#List_of_isotopes" title="Isotopes of hydrogen">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Hydrogen" title="Hydrogen">H</a></b></div>1 </td> <td colspan="17"> </td> <td style="padding-left:0.1em; background:#ff9999;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_helium" title="Isotopes of helium">Isotopes</a>  <a href="/wiki/Isotopes_of_helium#List_of_isotopes" title="Isotopes of helium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Helium" title="Helium">He</a></b></div>2 </td></tr> <tr> <th style="background:transparent"><span title="Period ②" class="nounderlines" style="font-size:150%;"><a href="/wiki/Period_2_element" title="Period 2 element">②</a></span> </th> <td style="padding-left:0.1em; background:#ff9999;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_lithium" title="Isotopes of lithium">Isotopes</a>  <a href="/wiki/Isotopes_of_lithium#List_of_isotopes" title="Isotopes of lithium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Lithium" title="Lithium">Li</a></b></div>3 </td> <td style="padding-left:0.1em; background:#ff9999;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_beryllium" title="Isotopes of beryllium">Isotopes</a>  <a href="/wiki/Isotopes_of_beryllium#List_of_isotopes" title="Isotopes of beryllium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Beryllium" title="Beryllium">Be</a></b></div>4 </td> <td colspan="11"> </td> <td style="padding-left:0.1em; background:#fdff8c;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_boron" title="Isotopes of boron">Isotopes</a>  <a href="/wiki/Isotopes_of_boron#List_of_isotopes" title="Isotopes of boron">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Boron" title="Boron">B</a></b></div>5 </td> <td style="padding-left:0.1em; background:#fdff8c;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_carbon" title="Isotopes of carbon">Isotopes</a>  <a href="/wiki/Isotopes_of_carbon#List_of_isotopes" title="Isotopes of carbon">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Carbon" title="Carbon">C</a></b></div>6 </td> <td style="padding-left:0.1em; background:#fdff8c;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_nitrogen" title="Isotopes of nitrogen">Isotopes</a>  <a href="/wiki/Isotopes_of_nitrogen#List_of_isotopes" title="Isotopes of nitrogen">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Nitrogen" title="Nitrogen">N</a></b></div>7 </td> <td style="padding-left:0.1em; background:#fdff8c;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_oxygen" title="Isotopes of oxygen">Isotopes</a>  <a href="/wiki/Isotopes_of_oxygen#List_of_isotopes" title="Isotopes of oxygen">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Oxygen" title="Oxygen">O</a></b></div>8 </td> <td style="padding-left:0.1em; background:#fdff8c;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_fluorine" title="Isotopes of fluorine">Isotopes</a>  <a href="/wiki/Isotopes_of_fluorine#List_of_isotopes" title="Isotopes of fluorine">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Fluorine" title="Fluorine">F</a></b></div>9 </td> <td style="padding-left:0.1em; background:#fdff8c;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_neon" title="Isotopes of neon">Isotopes</a>  <a href="/wiki/Isotopes_of_neon#List_of_isotopes" title="Isotopes of neon">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Neon" title="Neon">Ne</a></b></div>10 </td></tr> <tr> <th style="background:transparent"><span title="Period ③" class="nounderlines" style="font-size:150%;"><a href="/wiki/Period_3_element" title="Period 3 element">③</a></span> </th> <td style="padding-left:0.1em; background:#ff9999;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_sodium" title="Isotopes of sodium">Isotopes</a>  <a href="/wiki/Isotopes_of_sodium#List_of_isotopes" title="Isotopes of sodium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Sodium" title="Sodium">Na</a></b></div>11 </td> <td style="padding-left:0.1em; background:#ff9999;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_magnesium" title="Isotopes of magnesium">Isotopes</a>  <a href="/wiki/Isotopes_of_magnesium#List_of_isotopes" title="Isotopes of magnesium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Magnesium" title="Magnesium">Mg</a></b></div>12 </td> <td colspan="11"> </td> <td style="padding-left:0.1em; background:#fdff8c;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_aluminium" title="Isotopes of aluminium">Isotopes</a>  <a href="/wiki/Isotopes_of_aluminium#List_of_isotopes" title="Isotopes of aluminium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Aluminium" title="Aluminium">Al</a></b></div>13 </td> <td style="padding-left:0.1em; background:#fdff8c;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_silicon" title="Isotopes of silicon">Isotopes</a>  <a href="/wiki/Isotopes_of_silicon#List_of_isotopes" title="Isotopes of silicon">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Silicon" title="Silicon">Si</a></b></div>14 </td> <td style="padding-left:0.1em; background:#fdff8c;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_phosphorus" title="Isotopes of phosphorus">Isotopes</a>  <a href="/wiki/Isotopes_of_phosphorus#List_of_isotopes" title="Isotopes of phosphorus">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Phosphorus" title="Phosphorus">P</a></b></div>15 </td> <td style="padding-left:0.1em; background:#fdff8c;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_sulfur" title="Isotopes of sulfur">Isotopes</a>  <a href="/wiki/Isotopes_of_sulfur#List_of_isotopes" title="Isotopes of sulfur">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Sulfur" title="Sulfur">S</a></b></div>16 </td> <td style="padding-left:0.1em; background:#fdff8c;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_chlorine" title="Isotopes of chlorine">Isotopes</a>  <a href="/wiki/Isotopes_of_chlorine#List_of_isotopes" title="Isotopes of chlorine">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Chlorine" title="Chlorine">Cl</a></b></div>17 </td> <td style="padding-left:0.1em; background:#fdff8c;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_argon" title="Isotopes of argon">Isotopes</a>  <a href="/wiki/Isotopes_of_argon#List_of_isotopes" title="Isotopes of argon">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Argon" title="Argon">Ar</a></b></div>18 </td></tr> <tr> <th style="background:transparent"><span title="Period ④" class="nounderlines" style="font-size:150%;"><a href="/wiki/Period_4_element" title="Period 4 element">④</a></span> </th> <td style="padding-left:0.1em; background:#ff9999;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_potassium" title="Isotopes of potassium">Isotopes</a>  <a href="/wiki/Isotopes_of_potassium#List_of_isotopes" title="Isotopes of potassium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Potassium" title="Potassium">K</a></b></div>19 </td> <td style="padding-left:0.1em; background:#ff9999;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_calcium" title="Isotopes of calcium">Isotopes</a>  <a href="/wiki/Isotopes_of_calcium#List_of_isotopes" title="Isotopes of calcium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Calcium" title="Calcium">Ca</a></b></div>20 </td> <td> </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_scandium" title="Isotopes of scandium">Isotopes</a>  <a href="/wiki/Isotopes_of_scandium#List_of_isotopes" title="Isotopes of scandium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Scandium" title="Scandium">Sc</a></b></div>21 </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_titanium" title="Isotopes of titanium">Isotopes</a>  <a href="/wiki/Isotopes_of_titanium#List_of_isotopes" title="Isotopes of titanium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Titanium" title="Titanium">Ti</a></b></div>22 </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_vanadium" title="Isotopes of vanadium">Isotopes</a>  <a href="/wiki/Isotopes_of_vanadium#List_of_isotopes" title="Isotopes of vanadium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Vanadium" title="Vanadium">V</a></b></div>23 </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_chromium" title="Isotopes of chromium">Isotopes</a>  <a href="/wiki/Isotopes_of_chromium#List_of_isotopes" title="Isotopes of chromium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Chromium" title="Chromium">Cr</a></b></div>24 </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_manganese" title="Isotopes of manganese">Isotopes</a>  <a href="/wiki/Isotopes_of_manganese#List_of_isotopes" title="Isotopes of manganese">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Manganese" title="Manganese">Mn</a></b></div>25 </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_iron" title="Isotopes of iron">Isotopes</a>  <a href="/wiki/Isotopes_of_iron#List_of_isotopes" title="Isotopes of iron">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Iron" title="Iron">Fe</a></b></div>26 </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a class="mw-selflink selflink">Isotopes</a>  <a class="mw-selflink-fragment" href="#List_of_isotopes">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Cobalt" title="Cobalt">Co</a></b></div>27 </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_nickel" title="Isotopes of nickel">Isotopes</a>  <a href="/wiki/Isotopes_of_nickel#List_of_isotopes" title="Isotopes of nickel">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Nickel" title="Nickel">Ni</a></b></div>28 </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_copper" title="Isotopes of copper">Isotopes</a>  <a href="/wiki/Isotopes_of_copper#List_of_isotopes" title="Isotopes of copper">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Copper" title="Copper">Cu</a></b></div>29 </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_zinc" title="Isotopes of zinc">Isotopes</a>  <a href="/wiki/Isotopes_of_zinc#List_of_isotopes" title="Isotopes of zinc">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Zinc" title="Zinc">Zn</a></b></div>30 </td> <td style="padding-left:0.1em; background:#fdff8c;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_gallium" title="Isotopes of gallium">Isotopes</a>  <a href="/wiki/Isotopes_of_gallium#List_of_isotopes" title="Isotopes of gallium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Gallium" title="Gallium">Ga</a></b></div>31 </td> <td style="padding-left:0.1em; background:#fdff8c;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_germanium" title="Isotopes of germanium">Isotopes</a>  <a href="/wiki/Isotopes_of_germanium#List_of_isotopes" title="Isotopes of germanium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Germanium" title="Germanium">Ge</a></b></div>32 </td> <td style="padding-left:0.1em; background:#fdff8c;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_arsenic" title="Isotopes of arsenic">Isotopes</a>  <a href="/wiki/Isotopes_of_arsenic#List_of_isotopes" title="Isotopes of arsenic">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Arsenic" title="Arsenic">As</a></b></div>33 </td> <td style="padding-left:0.1em; background:#fdff8c;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_selenium" title="Isotopes of selenium">Isotopes</a>  <a href="/wiki/Isotopes_of_selenium#List_of_isotopes" title="Isotopes of selenium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Selenium" title="Selenium">Se</a></b></div>34 </td> <td style="padding-left:0.1em; background:#fdff8c;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_bromine" title="Isotopes of bromine">Isotopes</a>  <a href="/wiki/Isotopes_of_bromine#List_of_isotopes" title="Isotopes of bromine">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Bromine" title="Bromine">Br</a></b></div>35 </td> <td style="padding-left:0.1em; background:#fdff8c;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_krypton" title="Isotopes of krypton">Isotopes</a>  <a href="/wiki/Isotopes_of_krypton#List_of_isotopes" title="Isotopes of krypton">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Krypton" title="Krypton">Kr</a></b></div>36 </td></tr> <tr> <th style="background:transparent"><span title="Period ⑤" class="nounderlines" style="font-size:150%;"><a href="/wiki/Period_5_element" title="Period 5 element">⑤</a></span> </th> <td style="padding-left:0.1em; background:#ff9999;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_rubidium" title="Isotopes of rubidium">Isotopes</a>  <a href="/wiki/Isotopes_of_rubidium#List_of_isotopes" title="Isotopes of rubidium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Rubidium" title="Rubidium">Rb</a></b></div>37 </td> <td style="padding-left:0.1em; background:#ff9999;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_strontium" title="Isotopes of strontium">Isotopes</a>  <a href="/wiki/Isotopes_of_strontium#List_of_isotopes" title="Isotopes of strontium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Strontium" title="Strontium">Sr</a></b></div>38 </td> <td> </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_yttrium" title="Isotopes of yttrium">Isotopes</a>  <a href="/wiki/Isotopes_of_yttrium#List_of_isotopes" title="Isotopes of yttrium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Yttrium" title="Yttrium">Y</a></b></div>39 </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_zirconium" title="Isotopes of zirconium">Isotopes</a>  <a href="/wiki/Isotopes_of_zirconium#List_of_isotopes" title="Isotopes of zirconium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Zirconium" title="Zirconium">Zr</a></b></div>40 </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_niobium" title="Isotopes of niobium">Isotopes</a>  <a href="/wiki/Isotopes_of_niobium#List_of_isotopes" title="Isotopes of niobium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Niobium" title="Niobium">Nb</a></b></div>41 </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_molybdenum" title="Isotopes of molybdenum">Isotopes</a>  <a href="/wiki/Isotopes_of_molybdenum#List_of_isotopes" title="Isotopes of molybdenum">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Molybdenum" title="Molybdenum">Mo</a></b></div>42 </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_technetium" title="Isotopes of technetium">Isotopes</a>  <a href="/wiki/Isotopes_of_technetium#List_of_isotopes" title="Isotopes of technetium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Technetium" title="Technetium">Tc</a></b></div>43 </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_ruthenium" title="Isotopes of ruthenium">Isotopes</a>  <a href="/wiki/Isotopes_of_ruthenium#List_of_isotopes" title="Isotopes of ruthenium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Ruthenium" title="Ruthenium">Ru</a></b></div>44 </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_rhodium" title="Isotopes of rhodium">Isotopes</a>  <a href="/wiki/Isotopes_of_rhodium#List_of_isotopes" title="Isotopes of rhodium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Rhodium" title="Rhodium">Rh</a></b></div>45 </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_palladium" title="Isotopes of palladium">Isotopes</a>  <a href="/wiki/Isotopes_of_palladium#List_of_isotopes" title="Isotopes of palladium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Palladium" title="Palladium">Pd</a></b></div>46 </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_silver" title="Isotopes of silver">Isotopes</a>  <a href="/wiki/Isotopes_of_silver#List_of_isotopes" title="Isotopes of silver">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Silver" title="Silver">Ag</a></b></div>47 </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_cadmium" title="Isotopes of cadmium">Isotopes</a>  <a href="/wiki/Isotopes_of_cadmium#List_of_isotopes" title="Isotopes of cadmium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Cadmium" title="Cadmium">Cd</a></b></div>48 </td> <td style="padding-left:0.1em; background:#fdff8c;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_indium" title="Isotopes of indium">Isotopes</a>  <a href="/wiki/Isotopes_of_indium#List_of_isotopes" title="Isotopes of indium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Indium" title="Indium">In</a></b></div>49 </td> <td style="padding-left:0.1em; background:#fdff8c;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_tin" title="Isotopes of tin">Isotopes</a>  <a href="/wiki/Isotopes_of_tin#List_of_isotopes" title="Isotopes of tin">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Tin" title="Tin">Sn</a></b></div>50 </td> <td style="padding-left:0.1em; background:#fdff8c;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_antimony" title="Isotopes of antimony">Isotopes</a>  <a href="/wiki/Isotopes_of_antimony#List_of_isotopes" title="Isotopes of antimony">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Antimony" title="Antimony">Sb</a></b></div>51 </td> <td style="padding-left:0.1em; background:#fdff8c;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_tellurium" title="Isotopes of tellurium">Isotopes</a>  <a href="/wiki/Isotopes_of_tellurium#List_of_isotopes" title="Isotopes of tellurium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Tellurium" title="Tellurium">Te</a></b></div>52 </td> <td style="padding-left:0.1em; background:#fdff8c;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_iodine" title="Isotopes of iodine">Isotopes</a>  <a href="/wiki/Isotopes_of_iodine#List_of_isotopes" title="Isotopes of iodine">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Iodine" title="Iodine">I</a></b></div>53 </td> <td style="padding-left:0.1em; background:#fdff8c;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_xenon" title="Isotopes of xenon">Isotopes</a>  <a href="/wiki/Isotopes_of_xenon#List_of_isotopes" title="Isotopes of xenon">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Xenon" title="Xenon">Xe</a></b></div>54 </td></tr> <tr> <th style="background:transparent"><span title="Period ⑥" class="nounderlines" style="font-size:150%;"><a href="/wiki/Period_6_element" title="Period 6 element">⑥</a></span> </th> <td style="padding-left:0.1em; background:#ff9999;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_caesium" title="Isotopes of caesium">Isotopes</a>  <a href="/wiki/Isotopes_of_caesium#List_of_isotopes" title="Isotopes of caesium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Caesium" title="Caesium">Cs</a></b></div>55 </td> <td style="padding-left:0.1em; background:#ff9999;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_barium" title="Isotopes of barium">Isotopes</a>  <a href="/wiki/Isotopes_of_barium#List_of_isotopes" title="Isotopes of barium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Barium" title="Barium">Ba</a></b></div>56 </td> <td style="text-align:center; vertical-align:middle; background:#9bff99;"><span class="skin-invert-image" typeof="mw:File"><span><img alt="1 asterisk" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/49/Asterisks_one.svg/16px-Asterisks_one.svg.png" decoding="async" width="16" height="15" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/49/Asterisks_one.svg/24px-Asterisks_one.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/49/Asterisks_one.svg/32px-Asterisks_one.svg.png 2x" data-file-width="106" data-file-height="98" /></span></span> </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_lutetium" title="Isotopes of lutetium">Isotopes</a>  <a href="/wiki/Isotopes_of_lutetium#List_of_isotopes" title="Isotopes of lutetium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Lutetium" title="Lutetium">Lu</a></b></div>71 </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_hafnium" title="Isotopes of hafnium">Isotopes</a>  <a href="/wiki/Isotopes_of_hafnium#List_of_isotopes" title="Isotopes of hafnium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Hafnium" title="Hafnium">Hf</a></b></div>72 </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_tantalum" title="Isotopes of tantalum">Isotopes</a>  <a href="/wiki/Isotopes_of_tantalum#List_of_isotopes" title="Isotopes of tantalum">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Tantalum" title="Tantalum">Ta</a></b></div>73 </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_tungsten" title="Isotopes of tungsten">Isotopes</a>  <a href="/wiki/Isotopes_of_tungsten#List_of_isotopes" title="Isotopes of tungsten">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Tungsten" title="Tungsten">W</a></b></div>74 </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_rhenium" title="Isotopes of rhenium">Isotopes</a>  <a href="/wiki/Isotopes_of_rhenium#List_of_isotopes" title="Isotopes of rhenium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Rhenium" title="Rhenium">Re</a></b></div>75 </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_osmium" title="Isotopes of osmium">Isotopes</a>  <a href="/wiki/Isotopes_of_osmium#List_of_isotopes" title="Isotopes of osmium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Osmium" title="Osmium">Os</a></b></div>76 </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_iridium" title="Isotopes of iridium">Isotopes</a>  <a href="/wiki/Isotopes_of_iridium#List_of_isotopes" title="Isotopes of iridium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Iridium" title="Iridium">Ir</a></b></div>77 </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_platinum" title="Isotopes of platinum">Isotopes</a>  <a href="/wiki/Isotopes_of_platinum#List_of_isotopes" title="Isotopes of platinum">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Platinum" title="Platinum">Pt</a></b></div>78 </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_gold" title="Isotopes of gold">Isotopes</a>  <a href="/wiki/Isotopes_of_gold#List_of_isotopes" title="Isotopes of gold">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Gold" title="Gold">Au</a></b></div>79 </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_mercury" title="Isotopes of mercury">Isotopes</a>  <a href="/wiki/Isotopes_of_mercury#List_of_isotopes" title="Isotopes of mercury">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Mercury_(element)" title="Mercury (element)">Hg</a></b></div>80 </td> <td style="padding-left:0.1em; background:#fdff8c;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_thallium" title="Isotopes of thallium">Isotopes</a>  <a href="/wiki/Isotopes_of_thallium#List_of_isotopes" title="Isotopes of thallium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Thallium" title="Thallium">Tl</a></b></div>81 </td> <td style="padding-left:0.1em; background:#fdff8c;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_lead" title="Isotopes of lead">Isotopes</a>  <a href="/wiki/Isotopes_of_lead#List_of_isotopes" title="Isotopes of lead">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Lead" title="Lead">Pb</a></b></div>82 </td> <td style="padding-left:0.1em; background:#fdff8c;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_bismuth" title="Isotopes of bismuth">Isotopes</a>  <a href="/wiki/Isotopes_of_bismuth#List_of_isotopes" title="Isotopes of bismuth">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Bismuth" title="Bismuth">Bi</a></b></div>83 </td> <td style="padding-left:0.1em; background:#fdff8c;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_polonium" title="Isotopes of polonium">Isotopes</a>  <a href="/wiki/Isotopes_of_polonium#List_of_isotopes" title="Isotopes of polonium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Polonium" title="Polonium">Po</a></b></div>84 </td> <td style="padding-left:0.1em; background:#fdff8c;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_astatine" title="Isotopes of astatine">Isotopes</a>  <a href="/wiki/Isotopes_of_astatine#List_of_isotopes" title="Isotopes of astatine">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Astatine" title="Astatine">At</a></b></div>85 </td> <td style="padding-left:0.1em; background:#fdff8c;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_radon" title="Isotopes of radon">Isotopes</a>  <a href="/wiki/Isotopes_of_radon#List_of_isotopes" title="Isotopes of radon">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Radon" title="Radon">Rn</a></b></div>86 </td></tr> <tr> <th style="background:transparent"><span title="Period ⑦" class="nounderlines" style="font-size:150%;"><a href="/wiki/Period_7_element" title="Period 7 element">⑦</a></span> </th> <td style="padding-left:0.1em; background:#ff9999;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_francium" title="Isotopes of francium">Isotopes</a>  <a href="/wiki/Isotopes_of_francium#List_of_isotopes" title="Isotopes of francium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Francium" title="Francium">Fr</a></b></div>87 </td> <td style="padding-left:0.1em; background:#ff9999;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_radium" title="Isotopes of radium">Isotopes</a>  <a href="/wiki/Isotopes_of_radium#List_of_isotopes" title="Isotopes of radium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Radium" title="Radium">Ra</a></b></div>88 </td> <td style="text-align:center; vertical-align:middle; background:#9bff99;"><span class="skin-invert-image" typeof="mw:File"><span><img alt="1 asterisk" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Asterisks_2_%28vertical%29.svg/16px-Asterisks_2_%28vertical%29.svg.png" decoding="async" width="16" height="15" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Asterisks_2_%28vertical%29.svg/24px-Asterisks_2_%28vertical%29.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Asterisks_2_%28vertical%29.svg/32px-Asterisks_2_%28vertical%29.svg.png 2x" data-file-width="106" data-file-height="98" /></span></span> </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_lawrencium" title="Isotopes of lawrencium">Isotopes</a>  <a href="/wiki/Isotopes_of_lawrencium#List_of_isotopes" title="Isotopes of lawrencium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Lawrencium" title="Lawrencium">Lr</a></b></div>103 </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_rutherfordium" title="Isotopes of rutherfordium">Isotopes</a>  <a href="/wiki/Isotopes_of_rutherfordium#List_of_isotopes" title="Isotopes of rutherfordium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Rutherfordium" title="Rutherfordium">Rf</a></b></div>104 </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_dubnium" title="Isotopes of dubnium">Isotopes</a>  <a href="/wiki/Isotopes_of_dubnium#List_of_isotopes" title="Isotopes of dubnium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Dubnium" title="Dubnium">Db</a></b></div>105 </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_seaborgium" title="Isotopes of seaborgium">Isotopes</a>  <a href="/wiki/Isotopes_of_seaborgium#List_of_isotopes" title="Isotopes of seaborgium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Seaborgium" title="Seaborgium">Sg</a></b></div>106 </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_bohrium" title="Isotopes of bohrium">Isotopes</a>  <a href="/wiki/Isotopes_of_bohrium#List_of_isotopes" title="Isotopes of bohrium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Bohrium" title="Bohrium">Bh</a></b></div>107 </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_hassium" title="Isotopes of hassium">Isotopes</a>  <a href="/wiki/Isotopes_of_hassium#List_of_isotopes" title="Isotopes of hassium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Hassium" title="Hassium">Hs</a></b></div>108 </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_meitnerium" title="Isotopes of meitnerium">Isotopes</a>  <a href="/wiki/Isotopes_of_meitnerium#List_of_isotopes" title="Isotopes of meitnerium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Meitnerium" title="Meitnerium">Mt</a></b></div>109 </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_darmstadtium" title="Isotopes of darmstadtium">Isotopes</a>  <a href="/wiki/Isotopes_of_darmstadtium#List_of_isotopes" title="Isotopes of darmstadtium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Darmstadtium" title="Darmstadtium">Ds</a></b></div>110 </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_roentgenium" title="Isotopes of roentgenium">Isotopes</a>  <a href="/wiki/Isotopes_of_roentgenium#List_of_isotopes" title="Isotopes of roentgenium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Roentgenium" title="Roentgenium">Rg</a></b></div>111 </td> <td style="padding-left:0.1em; background:#99ccff;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_copernicium" title="Isotopes of copernicium">Isotopes</a>  <a href="/wiki/Isotopes_of_copernicium#List_of_isotopes" title="Isotopes of copernicium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Copernicium" title="Copernicium">Cn</a></b></div>112 </td> <td style="padding-left:0.1em; background:#fdff8c;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_nihonium" title="Isotopes of nihonium">Isotopes</a>  <a href="/wiki/Isotopes_of_nihonium#List_of_isotopes" title="Isotopes of nihonium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Nihonium" title="Nihonium">Nh</a></b></div>113 </td> <td style="padding-left:0.1em; background:#fdff8c;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_flerovium" title="Isotopes of flerovium">Isotopes</a>  <a href="/wiki/Isotopes_of_flerovium#List_of_isotopes" title="Isotopes of flerovium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Flerovium" title="Flerovium">Fl</a></b></div>114 </td> <td style="padding-left:0.1em; background:#fdff8c;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_moscovium" title="Isotopes of moscovium">Isotopes</a>  <a href="/wiki/Isotopes_of_moscovium#List_of_isotopes" title="Isotopes of moscovium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Moscovium" title="Moscovium">Mc</a></b></div>115 </td> <td style="padding-left:0.1em; background:#fdff8c;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_livermorium" title="Isotopes of livermorium">Isotopes</a>  <a href="/wiki/Isotopes_of_livermorium#List_of_isotopes" title="Isotopes of livermorium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Livermorium" title="Livermorium">Lv</a></b></div>116 </td> <td style="padding-left:0.1em; background:#fdff8c;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_tennessine" title="Isotopes of tennessine">Isotopes</a>  <a href="/wiki/Isotopes_of_tennessine#List_of_isotopes" title="Isotopes of tennessine">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Tennessine" title="Tennessine">Ts</a></b></div>117 </td> <td style="padding-left:0.1em; background:#fdff8c;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_oganesson" title="Isotopes of oganesson">Isotopes</a>  <a href="/wiki/Isotopes_of_oganesson#List_of_isotopes" title="Isotopes of oganesson">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Oganesson" title="Oganesson">Og</a></b></div>118 </td></tr> <tr> <th style="background:transparent"><span title="Period ⑧" class="nounderlines" style="font-size:150%;"><a href="/wiki/Period_8_element" class="mw-redirect" title="Period 8 element">⑧</a></span> </th> <td style="padding-left:0.1em; background:#eee;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_ununennium" title="Isotopes of ununennium">Isotopes</a>  <a href="/wiki/Isotopes_of_ununennium#List_of_isotopes" title="Isotopes of ununennium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Ununennium" title="Ununennium">Uue</a></b></div>119 </td> <td style="padding-left:0.1em; background:#eee;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_unbinilium" title="Isotopes of unbinilium">Isotopes</a>  <a href="/wiki/Isotopes_of_unbinilium#List_of_isotopes" title="Isotopes of unbinilium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Unbinilium" title="Unbinilium">Ubn</a></b></div>120 </td></tr> <tr> <td colspan="20" style="height:1.4em;"> </td></tr> <tr> <td> </td> <td> </td> <td> </td> <td style="text-align:center; vertical-align:middle;"><span class="skin-invert-image" typeof="mw:File"><span><img alt="1 asterisk" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/49/Asterisks_one.svg/16px-Asterisks_one.svg.png" decoding="async" width="16" height="15" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/49/Asterisks_one.svg/24px-Asterisks_one.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/49/Asterisks_one.svg/32px-Asterisks_one.svg.png 2x" data-file-width="106" data-file-height="98" /></span></span> </td> <td style="padding-left:0.1em; background:#9bff99;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_lanthanum" title="Isotopes of lanthanum">Isotopes</a>  <a href="/wiki/Isotopes_of_lanthanum#List_of_isotopes" title="Isotopes of lanthanum">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Lanthanum" title="Lanthanum">La</a></b></div>57 </td> <td style="padding-left:0.1em; background:#9bff99;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_cerium" title="Isotopes of cerium">Isotopes</a>  <a href="/wiki/Isotopes_of_cerium#List_of_isotopes" title="Isotopes of cerium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Cerium" title="Cerium">Ce</a></b></div>58 </td> <td style="padding-left:0.1em; background:#9bff99;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_praseodymium" title="Isotopes of praseodymium">Isotopes</a>  <a href="/wiki/Isotopes_of_praseodymium#List_of_isotopes" title="Isotopes of praseodymium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Praseodymium" title="Praseodymium">Pr</a></b></div>59 </td> <td style="padding-left:0.1em; background:#9bff99;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_neodymium" title="Isotopes of neodymium">Isotopes</a>  <a href="/wiki/Isotopes_of_neodymium#List_of_isotopes" title="Isotopes of neodymium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Neodymium" title="Neodymium">Nd</a></b></div>60 </td> <td style="padding-left:0.1em; background:#9bff99;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_promethium" title="Isotopes of promethium">Isotopes</a>  <a href="/wiki/Isotopes_of_promethium#List_of_isotopes" title="Isotopes of promethium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Promethium" title="Promethium">Pm</a></b></div>61 </td> <td style="padding-left:0.1em; background:#9bff99;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_samarium" title="Isotopes of samarium">Isotopes</a>  <a href="/wiki/Isotopes_of_samarium#List_of_isotopes" title="Isotopes of samarium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Samarium" title="Samarium">Sm</a></b></div>62 </td> <td style="padding-left:0.1em; background:#9bff99;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_europium" title="Isotopes of europium">Isotopes</a>  <a href="/wiki/Isotopes_of_europium#List_of_isotopes" title="Isotopes of europium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Europium" title="Europium">Eu</a></b></div>63 </td> <td style="padding-left:0.1em; background:#9bff99;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_gadolinium" title="Isotopes of gadolinium">Isotopes</a>  <a href="/wiki/Isotopes_of_gadolinium#List_of_isotopes" title="Isotopes of gadolinium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Gadolinium" title="Gadolinium">Gd</a></b></div>64 </td> <td style="padding-left:0.1em; background:#9bff99;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_terbium" title="Isotopes of terbium">Isotopes</a>  <a href="/wiki/Isotopes_of_terbium#List_of_isotopes" title="Isotopes of terbium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Terbium" title="Terbium">Tb</a></b></div>65 </td> <td style="padding-left:0.1em; background:#9bff99;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_dysprosium" title="Isotopes of dysprosium">Isotopes</a>  <a href="/wiki/Isotopes_of_dysprosium#List_of_isotopes" title="Isotopes of dysprosium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Dysprosium" title="Dysprosium">Dy</a></b></div>66 </td> <td style="padding-left:0.1em; background:#9bff99;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_holmium" title="Isotopes of holmium">Isotopes</a>  <a href="/wiki/Isotopes_of_holmium#List_of_isotopes" title="Isotopes of holmium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Holmium" title="Holmium">Ho</a></b></div>67 </td> <td style="padding-left:0.1em; background:#9bff99;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_erbium" title="Isotopes of erbium">Isotopes</a>  <a href="/wiki/Isotopes_of_erbium#List_of_isotopes" title="Isotopes of erbium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Erbium" title="Erbium">Er</a></b></div>68 </td> <td style="padding-left:0.1em; background:#9bff99;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_thulium" title="Isotopes of thulium">Isotopes</a>  <a href="/wiki/Isotopes_of_thulium#List_of_isotopes" title="Isotopes of thulium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Thulium" title="Thulium">Tm</a></b></div>69 </td> <td style="padding-left:0.1em; background:#9bff99;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_ytterbium" title="Isotopes of ytterbium">Isotopes</a>  <a href="/wiki/Isotopes_of_ytterbium#List_of_isotopes" title="Isotopes of ytterbium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Ytterbium" title="Ytterbium">Yb</a></b></div>70 </td> <td>  </td></tr> <tr> <td colspan="3"> </td> <td style="text-align:center; vertical-align:middle;"><span class="skin-invert-image" typeof="mw:File"><span><img alt="1 asterisk" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Asterisks_2_%28vertical%29.svg/16px-Asterisks_2_%28vertical%29.svg.png" decoding="async" width="16" height="15" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Asterisks_2_%28vertical%29.svg/24px-Asterisks_2_%28vertical%29.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/fe/Asterisks_2_%28vertical%29.svg/32px-Asterisks_2_%28vertical%29.svg.png 2x" data-file-width="106" data-file-height="98" /></span></span> </td> <td style="padding-left:0.1em; background:#9bff99;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_actinium" title="Isotopes of actinium">Isotopes</a>  <a href="/wiki/Isotopes_of_actinium#List_of_isotopes" title="Isotopes of actinium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Actinium" title="Actinium">Ac</a></b></div>89 </td> <td style="padding-left:0.1em; background:#9bff99;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_thorium" title="Isotopes of thorium">Isotopes</a>  <a href="/wiki/Isotopes_of_thorium#List_of_isotopes" title="Isotopes of thorium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Thorium" title="Thorium">Th</a></b></div>90 </td> <td style="padding-left:0.1em; background:#9bff99;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_protactinium" title="Isotopes of protactinium">Isotopes</a>  <a href="/wiki/Isotopes_of_protactinium#List_of_isotopes" title="Isotopes of protactinium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Protactinium" title="Protactinium">Pa</a></b></div>91 </td> <td style="padding-left:0.1em; background:#9bff99;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_uranium" title="Isotopes of uranium">Isotopes</a>  <a href="/wiki/Isotopes_of_uranium#List_of_isotopes" title="Isotopes of uranium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Uranium" title="Uranium">U</a></b></div>92 </td> <td style="padding-left:0.1em; background:#9bff99;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_neptunium" title="Isotopes of neptunium">Isotopes</a>  <a href="/wiki/Isotopes_of_neptunium#List_of_isotopes" title="Isotopes of neptunium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Neptunium" title="Neptunium">Np</a></b></div>93 </td> <td style="padding-left:0.1em; background:#9bff99;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_plutonium" title="Isotopes of plutonium">Isotopes</a>  <a href="/wiki/Isotopes_of_plutonium#List_of_isotopes" title="Isotopes of plutonium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Plutonium" title="Plutonium">Pu</a></b></div>94 </td> <td style="padding-left:0.1em; background:#9bff99;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_americium" title="Isotopes of americium">Isotopes</a>  <a href="/wiki/Isotopes_of_americium#List_of_isotopes" title="Isotopes of americium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Americium" title="Americium">Am</a></b></div>95 </td> <td style="padding-left:0.1em; background:#9bff99;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_curium" title="Isotopes of curium">Isotopes</a>  <a href="/wiki/Isotopes_of_curium#List_of_isotopes" title="Isotopes of curium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Curium" title="Curium">Cm</a></b></div>96 </td> <td style="padding-left:0.1em; background:#9bff99;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_berkelium" title="Isotopes of berkelium">Isotopes</a>  <a href="/wiki/Isotopes_of_berkelium#List_of_isotopes" title="Isotopes of berkelium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Berkelium" title="Berkelium">Bk</a></b></div>97 </td> <td style="padding-left:0.1em; background:#9bff99;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_californium" title="Isotopes of californium">Isotopes</a>  <a href="/wiki/Isotopes_of_californium#List_of_isotopes" title="Isotopes of californium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Californium" title="Californium">Cf</a></b></div>98 </td> <td style="padding-left:0.1em; background:#9bff99;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_einsteinium" title="Isotopes of einsteinium">Isotopes</a>  <a href="/wiki/Isotopes_of_einsteinium#List_of_isotopes" title="Isotopes of einsteinium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Einsteinium" title="Einsteinium">Es</a></b></div>99 </td> <td style="padding-left:0.1em; background:#9bff99;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_fermium" title="Isotopes of fermium">Isotopes</a>  <a href="/wiki/Isotopes_of_fermium#List_of_isotopes" title="Isotopes of fermium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Fermium" title="Fermium">Fm</a></b></div>100 </td> <td style="padding-left:0.1em; background:#9bff99;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_mendelevium" title="Isotopes of mendelevium">Isotopes</a>  <a href="/wiki/Isotopes_of_mendelevium#List_of_isotopes" title="Isotopes of mendelevium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Mendelevium" title="Mendelevium">Md</a></b></div>101 </td> <td style="padding-left:0.1em; background:#9bff99;"><div style="text-align:left"><small><a href="/wiki/Isotopes_of_nobelium" title="Isotopes of nobelium">Isotopes</a>  <a href="/wiki/Isotopes_of_nobelium#List_of_isotopes" title="Isotopes of nobelium">§ List</a></small></div><div style="display:block"><b><a href="/wiki/Nobelium" title="Nobelium">No</a></b></div>102 </td></tr></tbody></table> </div></td></tr><tr><td class="navbox-abovebelow hlist" colspan="2" style="background:#f0f0f0;"><div> <ul><li><a href="/wiki/Table_of_nuclides" title="Table of nuclides">Table of nuclides</a></li> <li>Categories: <a href="/wiki/Category:Isotopes" title="Category:Isotopes">Isotopes</a></li> <li><a href="/wiki/Category:Tables_of_nuclides" title="Category:Tables of nuclides">Tables of nuclides</a></li> <li><a href="/wiki/Category:Metastable_isotopes" title="Category:Metastable isotopes">Metastable isotopes</a></li> <li><a href="/wiki/Category:Lists_of_isotopes_by_element" title="Category:Lists of isotopes by element">Isotopes by element</a></li></ul> </div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1&useformat=desktop" alt="" width="1" height="1" style="border: none; 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