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<span class="vector-toc-numb">2</span> <span>Notable isotopes</span> </div> </a> <button aria-controls="toc-Notable_isotopes-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Notable isotopes subsection</span> </button> <ul id="toc-Notable_isotopes-sublist" class="vector-toc-list"> <li id="toc-Krypton-81" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Krypton-81"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>Krypton-81</span> </div> </a> <ul id="toc-Krypton-81-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Krypton-85" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Krypton-85"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.2</span> <span>Krypton-85</span> </div> </a> <ul id="toc-Krypton-85-sublist" class="vector-toc-list"> <li 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Available in 17 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-17" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">17 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D9%86%D8%B8%D8%A7%D8%A6%D8%B1_%D8%A7%D9%84%D9%83%D8%B1%D9%8A%D8%A8%D8%AA%D9%88%D9%86" title="نظائر الكريبتون – Arabic" lang="ar" hreflang="ar" data-title="نظائر الكريبتون" data-language-autonym="العربية" data-language-local-name="Arabic" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Is%C3%B2tops_del_cript%C3%B3" title="Isòtops del criptó – Catalan" lang="ca" hreflang="ca" data-title="Isòtops del criptó" 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%D1%80%D0%B8%D0%BF%D1%82%D0%BE%D0%BD_%D0%B8%D0%B7%D0%BE%D1%82%D0%BE%D0%BF%C4%95%D1%81%D0%B5%D0%BC" title="Криптон изотопĕсем – Chuvash" lang="cv" hreflang="cv" data-title="Криптон 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_kryptonu" title="Izotopy kryptonu – Czech" lang="cs" hreflang="cs" data-title="Izotopy kryptonu" data-language-autonym="Čeština" data-language-local-name="Czech" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Kryptonisotoper" title="Kryptonisotoper – Danish" lang="da" hreflang="da" data-title="Kryptonisotoper" data-language-autonym="Dansk" data-language-local-name="Danish" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Anexo:Is%C3%B3topos_de_kript%C3%B3n" title="Anexo:Isótopos de kriptón – Spanish" lang="es" hreflang="es" data-title="Anexo:Isótopos de kriptón" 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%B1%DB%8C%D9%BE%D8%AA%D9%88%D9%86" title="ایزوتوپ‌های کریپتون – Persian" lang="fa" hreflang="fa" data-title="ایزوتوپ‌های کریپتون" 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_krypton" title="Isotopes du krypton – French" lang="fr" hreflang="fr" data-title="Isotopes du krypton" 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/%ED%81%AC%EB%A6%BD%ED%86%A4_%EB%8F%99%EC%9C%84_%EC%9B%90%EC%86%8C" title="크립톤 동위 원소 – Korean" lang="ko" hreflang="ko" data-title="크립톤 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_kripton" title="Isotop kripton – Indonesian" lang="id" hreflang="id" data-title="Isotop kripton" 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_kripton_izot%C3%B3pjai" title="A kripton izotópjai – Hungarian" lang="hu" hreflang="hu" data-title="A kripton 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_krypton" title="Isotopen van krypton – Dutch" lang="nl" hreflang="nl" data-title="Isotopen van krypton" 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%AF%E3%83%AA%E3%83%97%E3%83%88%E3%83%B3%E3%81%AE%E5%90%8C%E4%BD%8D%E4%BD%93" title="クリプトンの同位体 – Japanese" lang="ja" hreflang="ja" data-title="クリプトンの同位体" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%98%D0%B7%D0%BE%D1%82%D0%BE%D0%BF%D1%8B_%D0%BA%D1%80%D0%B8%D0%BF%D1%82%D0%BE%D0%BD%D0%B0" title="Изотопы криптона – Russian" lang="ru" hreflang="ru" data-title="Изотопы криптона" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Kripton_izotoplar%C4%B1" title="Kripton izotopları – Turkish" lang="tr" hreflang="tr" data-title="Kripton izotopları" 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id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><p class="mw-empty-elt"> </p> <style data-mw-deduplicate="TemplateStyles:r1257001546">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .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/Krypton" title="Krypton">krypton</a> <style data-mw-deduplicate="TemplateStyles:r886047488">.mw-parser-output .nobold{font-weight:normal}</style><span class="nobold">(<sub>36</sub>Kr)</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>78</sup>Kr </th> <td rowspan="1" colspan="1" style="vertical-align: top; text-align: right;">0.360% </td> <td rowspan="1" colspan="1" style="vertical-align: top; text-align: right;"><span class="nowrap"><span data-sort-value="7029290329920000000♠"></span>9.2<span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>21</sup> y</span><sup id="cite_ref-Patrignani2016_2-0" class="reference"><a href="#cite_note-Patrignani2016-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </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">εε</a></span><span style="float: right; padding-left: 0.2em;"></span> </td> <td style="text-align: right; vertical-align: middle;"><a href="/wiki/Selenium-78" class="mw-redirect" title="Selenium-78"><sup>78</sup>Se</a> </td></tr> <tr> <th rowspan="3" style="vertical-align: top;"><sup>79</sup>Kr </th> <td rowspan="3" colspan="1" style="vertical-align: top; text-align: center;"><a href="/wiki/Synthetic_radioisotope" title="Synthetic radioisotope">synth</a> </td> <td rowspan="3" colspan="1" style="vertical-align: top; text-align: right;"><span class="nowrap"><span data-sort-value="7005126000000000000♠"></span>35 h</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/Bromine-79" class="mw-redirect" title="Bromine-79"><sup>79</sup>Br</a> </td></tr> <tr> <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;"><sup>79</sup>Br </td></tr> <tr> <td style="text-align: left; vertical-align: top;"><span style="float: left; font-size: 115%; padding: 0;"><a href="/wiki/Gamma_decay" class="mw-redirect" title="Gamma decay">γ</a></span><span style="float: right; padding-left: 0.2em;"></span> </td> <td style="text-align: right; vertical-align: middle;"><sup></sup>– </td></tr> <tr> <th rowspan="1" style="vertical-align: top;"><sup>80</sup>Kr </th> <td rowspan="1" colspan="1" style="vertical-align: top; text-align: right;">2.29% </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;"><sup>81</sup>Kr </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="7012725824799999999♠"></span>2.3<span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>5</sup> y</span> </td> <td style="text-align: left; vertical-align: top;"><span style="float: left; font-size: 115%; padding: 0;">ε</span><span style="float: right; padding-left: 0.2em;"></span> </td> <td style="text-align: right; vertical-align: middle;"><a href="/wiki/Bromine-81" class="mw-redirect" title="Bromine-81"><sup>81</sup>Br</a> </td></tr> <tr> <th rowspan="2" style="vertical-align: top;"><sup>81m</sup>Kr </th> <td rowspan="2" colspan="1" style="vertical-align: top; text-align: center;">synth </td> <td rowspan="2" colspan="1" style="vertical-align: top; text-align: right;"><span class="nowrap"><span data-sort-value="7001131000000000000♠"></span>13.10 s</span> </td> <td style="text-align: left; vertical-align: top;"><span style="float: left; font-size: 115%; padding: 0;"><a href="/wiki/Isomeric_transition" class="mw-redirect" title="Isomeric transition">IT</a></span><span style="float: right; padding-left: 0.2em;"></span> </td> <td style="text-align: right; vertical-align: middle;"><sup>81</sup>Kr </td></tr> <tr> <td style="text-align: left; vertical-align: top;"><span style="float: left; font-size: 115%; padding: 0;">ε</span><span style="float: right; padding-left: 0.2em;"></span> </td> <td style="text-align: right; vertical-align: middle;"><sup>81</sup>Br </td></tr> <tr> <th rowspan="1" style="vertical-align: top;"><sup>82</sup>Kr </th> <td rowspan="1" colspan="1" style="vertical-align: top; text-align: right;">11.6% </td> <td rowspan="1" colspan="3" style="vertical-align: top; text-align: left;">stable </td></tr> <tr> <th rowspan="1" style="vertical-align: top;"><sup>83</sup>Kr </th> <td rowspan="1" colspan="1" style="vertical-align: top; text-align: right;">11.5% </td> <td rowspan="1" colspan="3" style="vertical-align: top; text-align: left;">stable </td></tr> <tr> <th rowspan="1" style="vertical-align: top;"><sup>84</sup>Kr </th> <td rowspan="1" colspan="1" style="vertical-align: top; text-align: right;">57.0% </td> <td rowspan="1" colspan="3" style="vertical-align: top; text-align: left;">stable </td></tr> <tr> <th rowspan="1" style="vertical-align: top;"><a href="/wiki/Krypton-85" title="Krypton-85"><sup>85</sup>Kr</a> </th> <td rowspan="1" colspan="1" style="vertical-align: top; text-align: center;">trace </td> <td rowspan="1" colspan="1" style="vertical-align: top; text-align: right;"><span class="nowrap"><span data-sort-value="7008347133600000000♠"></span>11 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;"></span> </td> <td style="text-align: right; vertical-align: middle;"><a href="/wiki/Rubidium-85" class="mw-redirect" title="Rubidium-85"><sup>85</sup>Rb</a> </td></tr> <tr> <th rowspan="1" style="vertical-align: top;"><sup>86</sup>Kr </th> <td rowspan="1" colspan="1" style="vertical-align: top; text-align: right;">17.3% </td> <td rowspan="1" colspan="3" style="vertical-align: top; text-align: left;">stable </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>°(Kr)</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="7001837980000000000♠"></span>83.798<span style="margin-left:0.3em;margin-right:0.15em;">±</span>0.002</span><sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup></li><li><span class="nowrap"><span data-sort-value="7001837980000000000♠"></span>83.798<span style="margin-left:0.3em;margin-right:0.15em;">±</span>0.002</span> (<a href="/wiki/Standard_atomic_weight#Abridged_atomic_weight" title="Standard atomic weight">abridged</a>)<sup id="cite_ref-CIAAW2021_4-0" class="reference"><a href="#cite_note-CIAAW2021-4"><span class="cite-bracket">[</span>4<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_krypton_isotopes" title="Template:Infobox krypton isotopes"><span title="View this template">view</span></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Infobox_krypton_isotopes" class="mw-redirect" title="Template talk:Infobox krypton isotopes"><span title="Discuss this template">talk</span></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Infobox_krypton_isotopes" title="Special:EditPage/Template:Infobox krypton isotopes"><span title="Edit this template">edit</span></a></li></ul></div></td></tr></tbody></table> <p>There are 34 known <a href="/wiki/Isotope" title="Isotope">isotopes</a> of <a href="/wiki/Krypton" title="Krypton">krypton</a> (<sub>36</sub>Kr) with <a href="/wiki/Atomic_mass_number" class="mw-redirect" title="Atomic mass number">atomic mass numbers</a> from 69 through 102.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> Naturally occurring krypton is made of five <a href="/wiki/Stable_isotope" class="mw-redirect" title="Stable isotope">stable isotopes</a> and one (<span style="white-space:nowrap;"><span class="nowrap"><span style="display:inline-block;margin-bottom:-0.3em;vertical-align:0.8em;line-height:1.0em;font-size:80%;text-align:right"><sup style="font-size:inherit;line-height:inherit;vertical-align:baseline">78</sup><br /><sub style="font-size:inherit;line-height:inherit;vertical-align:baseline"></sub></span></span>Kr<span class="nowrap"><span style="display:inline-block;margin-bottom:-0.3em;vertical-align:0.8em;line-height:1.0em;font-size:80%;text-align:left"><sup style="font-size:inherit;line-height:inherit;vertical-align:baseline"></sup><br /><sub style="font-size:inherit;line-height:inherit;vertical-align:baseline"></sub></span></span></span>) which is slightly <a href="/wiki/Radioactive" class="mw-redirect" title="Radioactive">radioactive</a> with an extremely long half-life, plus traces of <a href="/wiki/Radioisotopes" class="mw-redirect" title="Radioisotopes">radioisotopes</a> that are produced by <a href="/wiki/Cosmic_rays" class="mw-redirect" title="Cosmic rays">cosmic rays</a> in the <a href="/wiki/Atmosphere" title="Atmosphere">atmosphere</a>. </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_krypton&action=edit&section=1" title="Edit section: List of isotopes"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <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-7" class="reference"><a href="#cite_note-7"><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_8-0" class="reference"><a href="#cite_note-AME2020_II-8"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup><br /><sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>n 2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-TMS_10-0" class="reference"><a href="#cite_note-TMS-10"><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-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>n 4<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-TNN_12-0" class="reference"><a href="#cite_note-TNN-12"><span class="cite-bracket">[</span>n 5<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-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>n 6<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-14" class="reference"><a href="#cite_note-14"><span class="cite-bracket">[</span>n 7<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-15" class="reference"><a href="#cite_note-15"><span class="cite-bracket">[</span>n 8<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-16" class="reference"><a href="#cite_note-16"><span class="cite-bracket">[</span>n 9<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-TNN_12-1" class="reference"><a href="#cite_note-TNN-12"><span class="cite-bracket">[</span>n 5<span class="cite-bracket">]</span></a></sup> </th> <th colspan="2"><a href="/wiki/Natural_abundance" title="Natural abundance">Natural abundance</a> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r886047488"><span class="nobold">(mole fraction)</span> </th></tr> <tr> <th colspan="3">Excitation energy </th> <th>Normal proportion<sup id="cite_ref-NUBASE2020_1-4" class="reference"><a href="#cite_note-NUBASE2020-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </th> <th>Range of variation </th></tr> <tr id="Krypton-67"> <td rowspan="2"><sup>67</sup>Kr </td> <td rowspan="2" style="text-align:right">36 </td> <td rowspan="2" style="text-align:right">31 </td> <td rowspan="2">66.98331(46)# </td> <td rowspan="2">7.4(29) ms </td> <td><a href="/wiki/Beta_decay" title="Beta decay">β<sup>+</sup></a>? (63%) </td> <td><sup>67</sup>Br </td> <td rowspan="2">3/2-# </td> <td rowspan="2"> </td> <td rowspan="2"> </td></tr> <tr> <td><a href="/wiki/Proton_emission" title="Proton emission">2p</a> (37%) </td> <td><sup>65</sup>Se </td></tr> <tr id="Krypton-68"> <td rowspan="3"><sup>68</sup>Kr </td> <td rowspan="3" style="text-align:right">36 </td> <td rowspan="3" style="text-align:right">32 </td> <td rowspan="3">67.97249(54)# </td> <td rowspan="3">21.6(33) ms </td> <td>β<sup>+</sup>, p (>90%) </td> <td><sup>67</sup>Se </td> <td rowspan="3">0+ </td> <td rowspan="3"> </td> <td rowspan="3"> </td></tr> <tr> <td>β<sup>+</sup>? (<10%) </td> <td><sup>68</sup>Br </td></tr> <tr> <td>p? </td> <td><sup>67</sup>Br </td></tr> <tr id="Krypton-69"> <td rowspan="2"><sup>69</sup>Kr </td> <td rowspan="2" style="text-align:right">36 </td> <td rowspan="2" style="text-align:right">33 </td> <td rowspan="2">68.96550(32)# </td> <td rowspan="2">27.9(8) ms </td> <td>β<sup>+</sup>, p (94%) </td> <td><sup>68</sup>Se </td> <td rowspan="2">(5/2−) </td> <td rowspan="2"> </td> <td rowspan="2"> </td></tr> <tr> <td>β<sup>+</sup> (6%) </td> <td><sup>69</sup>Br </td></tr> <tr id="Krypton-70"> <td rowspan="2"><sup>70</sup>Kr </td> <td rowspan="2" style="text-align:right">36 </td> <td rowspan="2" style="text-align:right">34 </td> <td rowspan="2">69.95588(22)# </td> <td rowspan="2">45.00(14) ms </td> <td>β<sup>+</sup> (>98.7%) </td> <td><sup>70</sup>Br </td> <td rowspan="2">0+ </td> <td rowspan="2"> </td> <td rowspan="2"> </td></tr> <tr> <td>β<sup>+</sup>, p (<1.3%) </td> <td><sup>69</sup>Se </td></tr> <tr id="Krypton-71"> <td rowspan="2"><sup>71</sup>Kr </td> <td rowspan="2" style="text-align:right">36 </td> <td rowspan="2" style="text-align:right">35 </td> <td rowspan="2">70.95027(14) </td> <td rowspan="2">98.8(3) ms </td> <td>β<sup>+</sup> (97.9%) </td> <td><sup>71</sup>Br </td> <td rowspan="2">(5/2)− </td> <td rowspan="2"> </td> <td rowspan="2"> </td></tr> <tr> <td>β<sup>+</sup>, p (2.1%) </td> <td><sup>70</sup>Se </td></tr> <tr id="Krypton-72"> <td><sup>72</sup>Kr </td> <td style="text-align:right">36 </td> <td style="text-align:right">36 </td> <td>71.9420924(86) </td> <td>17.16(18) s </td> <td>β<sup>+</sup> </td> <td><sup>72</sup>Br </td> <td>0+ </td> <td> </td> <td> </td></tr> <tr id="Krypton-73"> <td rowspan="2"><sup>73</sup>Kr </td> <td rowspan="2" style="text-align:right">36 </td> <td rowspan="2" style="text-align:right">37 </td> <td rowspan="2">72.9392892(71) </td> <td rowspan="2">27.3(10) s </td> <td>β<sup>+</sup> (99.75%) </td> <td><sup>73</sup>Br </td> <td rowspan="2">(3/2)− </td> <td rowspan="2"> </td> <td rowspan="2"> </td></tr> <tr> <td>β<sup>+</sup>, p (0.25%) </td> <td><sup>72</sup>Se </td></tr> <tr id="Krypton-73m"> <td style="text-indent:1em"><sup>73m</sup>Kr </td> <td colspan="3" style="text-indent:2em">433.55(13) keV </td> <td>107(10) ns </td> <td><a href="/wiki/Isomeric_transition" class="mw-redirect" title="Isomeric transition">IT</a> </td> <td><sup>73</sup>Kr </td> <td>(9/2+) </td> <td> </td> <td> </td></tr> <tr id="Krypton-74"> <td><sup>74</sup>Kr </td> <td style="text-align:right">36 </td> <td style="text-align:right">38 </td> <td>73.9330840(22) </td> <td>11.50(11) min </td> <td>β<sup>+</sup> </td> <td><sup>74</sup>Br </td> <td>0+ </td> <td> </td> <td> </td></tr> <tr id="Krypton-75"> <td><sup>75</sup>Kr </td> <td style="text-align:right">36 </td> <td style="text-align:right">39 </td> <td>74.9309457(87) </td> <td>4.60(7) min </td> <td>β<sup>+</sup> </td> <td><sup>75</sup>Br </td> <td>5/2+ </td> <td> </td> <td> </td></tr> <tr id="Krypton-76"> <td><sup>76</sup>Kr </td> <td style="text-align:right">36 </td> <td style="text-align:right">40 </td> <td>75.9259107(43) </td> <td>14.8(1) h </td> <td>β<sup>+</sup> </td> <td><sup>76</sup>Br </td> <td>0+ </td> <td> </td> <td> </td></tr> <tr id="Krypton-77"> <td><sup>77</sup>Kr </td> <td style="text-align:right">36 </td> <td style="text-align:right">41 </td> <td>76.9246700(21) </td> <td>72.6(9) min </td> <td>β<sup>+</sup> </td> <td><sup>77</sup>Br </td> <td>5/2+ </td> <td> </td> <td> </td></tr> <tr id="Krypton-77m"> <td style="text-indent:1em"><sup>77m</sup>Kr </td> <td colspan="3" style="text-indent:2em">66.50(5) keV </td> <td>118(12) ns </td> <td>IT </td> <td><sup>77</sup>Kr </td> <td>3/2− </td> <td> </td> <td> </td></tr> <tr id="Krypton-78"> <td><sup>78</sup>Kr<sup id="cite_ref-17" class="reference"><a href="#cite_note-17"><span class="cite-bracket">[</span>n 10<span class="cite-bracket">]</span></a></sup> </td> <td style="text-align:right">36 </td> <td style="text-align:right">42 </td> <td>77.92036634(33) </td> <td align="center"><b>9.2 <span class="nowrap"><span style="display:inline-block;margin-bottom:-0.3em;vertical-align:-0.4em;line-height:1.2em;font-size:80%;text-align:left"><sup style="font-size:inherit;line-height:inherit;vertical-align:baseline">+5.5</sup><br /><sub style="font-size:inherit;line-height:inherit;vertical-align:baseline">−2.6</sub></span></span> <span style="margin-left:0.3em;margin-right:0.15em;">±</span>1.3<span style="margin:0 .15em 0 .25em">×</span>10<sup><span class="nowrap"><span data-sort-value="7001210000000000000♠"></span>21</span></sup> y</b><sup id="cite_ref-Patrignani2016_2-1" class="reference"><a href="#cite_note-Patrignani2016-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </td> <td><a href="/wiki/Double_electron_capture" title="Double electron capture">Double EC</a> </td> <td><b><sup>78</sup>Se</b> </td> <td>0+ </td> <td>0.00355(3) </td> <td> </td></tr> <tr id="Krypton-79"> <td><sup>79</sup>Kr </td> <td style="text-align:right">36 </td> <td style="text-align:right">43 </td> <td>78.9200829(37) </td> <td>35.04(10) h </td> <td>β<sup>+</sup> </td> <td><b><sup>79</sup>Br</b> </td> <td>1/2− </td> <td> </td> <td> </td></tr> <tr id="Krypton-79m"> <td style="text-indent:1em"><sup>79m</sup>Kr </td> <td colspan="3" style="text-indent:2em">129.77(5) keV </td> <td>50(3) s </td> <td>IT </td> <td><sup>79</sup>Kr </td> <td>7/2+ </td> <td> </td> <td> </td></tr> <tr id="Krypton-80"> <td><sup>80</sup>Kr </td> <td style="text-align:right">36 </td> <td style="text-align:right">44 </td> <td>79.91637794(75) </td> <td colspan="3" align="center"><b>Stable</b> </td> <td>0+ </td> <td>0.02286(10) </td> <td> </td></tr> <tr> <td><sup>81</sup>Kr<sup id="cite_ref-18" class="reference"><a href="#cite_note-18"><span class="cite-bracket">[</span>n 11<span class="cite-bracket">]</span></a></sup> </td> <td style="text-align:right">36 </td> <td style="text-align:right">45 </td> <td>80.9165897(12) </td> <td>2.29(11)×10<sup>5</sup> y </td> <td><a href="/wiki/Electron_capture" title="Electron capture">EC</a> </td> <td><b><sup>81</sup>Br</b> </td> <td>7/2+ </td> <td><span class="nowrap"><span data-sort-value="6987600000000000000♠"></span>6<span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>−13</sup></span><sup id="cite_ref-zheng-tian_19-0" class="reference"><a href="#cite_note-zheng-tian-19"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </td> <td> </td></tr> <tr id="Krypton-81m"> <td rowspan="2" style="text-indent:1em"><sup>81m</sup>Kr </td> <td rowspan="2" colspan="3" style="text-indent:2em">190.64(4) keV </td> <td rowspan="2">13.10(3) s </td> <td>IT </td> <td><sup>81</sup>Kr </td> <td rowspan="2">1/2− </td> <td rowspan="2"> </td> <td rowspan="2"> </td></tr> <tr> <td>EC (0.0025%) </td> <td><b><sup>81</sup>Br</b> </td></tr> <tr id="Krypton-82"> <td><sup>82</sup>Kr </td> <td style="text-align:right">36 </td> <td style="text-align:right">46 </td> <td>81.9134811537(59) </td> <td colspan="3" align="center"><b>Stable</b> </td> <td>0+ </td> <td>0.11593(31) </td> <td> </td></tr> <tr id="Krypton-83"> <td><sup>83</sup>Kr<sup id="cite_ref-FP_20-0" class="reference"><a href="#cite_note-FP-20"><span class="cite-bracket">[</span>n 12<span class="cite-bracket">]</span></a></sup> </td> <td style="text-align:right">36 </td> <td style="text-align:right">47 </td> <td>82.914126516(9) </td> <td colspan="3" align="center"><b>Stable</b> </td> <td>9/2+ </td> <td>0.11500(19) </td> <td> </td></tr> <tr id="Krypton-83m1"> <td style="text-indent:1em"><sup>83m1</sup>Kr </td> <td colspan="3" style="text-indent:2em">9.4053(8) keV </td> <td>156.8(5) ns </td> <td>IT </td> <td><b><sup>83</sup>Kr</b> </td> <td>7/2+ </td> <td> </td> <td> </td></tr> <tr id="Krypton-83m2"> <td style="text-indent:1em"><sup>83m2</sup>Kr </td> <td colspan="3" style="text-indent:2em">41.5575(7) keV </td> <td>1.830(13) h </td> <td>IT </td> <td><b><sup>83</sup>Kr</b> </td> <td>1/2− </td> <td> </td> <td> </td></tr> <tr id="Krypton-84"> <td><sup>84</sup>Kr<sup id="cite_ref-FP_20-1" class="reference"><a href="#cite_note-FP-20"><span class="cite-bracket">[</span>n 12<span class="cite-bracket">]</span></a></sup> </td> <td style="text-align:right">36 </td> <td style="text-align:right">48 </td> <td>83.9114977271(41) </td> <td colspan="3" align="center"><b>Stable</b> </td> <td>0+ </td> <td>0.56987(15) </td> <td> </td></tr> <tr id="Krypton-84m"> <td style="text-indent:1em"><sup>84m</sup>Kr </td> <td colspan="3" style="text-indent:2em">3236.07(18) keV </td> <td>1.83(4) μs </td> <td>IT </td> <td><b><sup>84</sup>Kr</b> </td> <td>8+ </td> <td> </td> <td> </td></tr> <tr> <td><a href="/wiki/Krypton-85" title="Krypton-85"><sup>85</sup>Kr</a><sup id="cite_ref-FP_20-2" class="reference"><a href="#cite_note-FP-20"><span class="cite-bracket">[</span>n 12<span class="cite-bracket">]</span></a></sup> </td> <td style="text-align:right">36 </td> <td style="text-align:right">49 </td> <td>84.9125273(21) </td> <td>10.728(7) y </td> <td>β<sup>−</sup> </td> <td><b><sup>85</sup>Rb</b> </td> <td>9/2+ </td> <td><span class="nowrap"><span data-sort-value="6989100000000000000♠"></span>1<span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>−11</sup></span><sup id="cite_ref-zheng-tian_19-1" class="reference"><a href="#cite_note-zheng-tian-19"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </td> <td> </td></tr> <tr id="Krypton-85m1"> <td rowspan="2" style="text-indent:1em"><sup>85m1</sup>Kr </td> <td rowspan="2" colspan="3" style="text-indent:2em">304.871(20) keV </td> <td rowspan="2">4.480(8) h </td> <td>β<sup>−</sup> (78.8%) </td> <td><b><sup>85</sup>Rb</b> </td> <td rowspan="2">1/2− </td> <td rowspan="2"> </td> <td rowspan="2"> </td></tr> <tr> <td>IT (21.2%) </td> <td><sup>85</sup>Kr </td></tr> <tr id="Krypton-85m2"> <td style="text-indent:1em"><sup>85m2</sup>Kr </td> <td colspan="3" style="text-indent:2em">1991.8(2) keV </td> <td>1.82(5) μs<br /> </td> <td>IT </td> <td><sup>85</sup>Kr </td> <td>(17/2+) </td> <td> </td> <td> </td></tr> <tr> <td><sup>86</sup>Kr<sup id="cite_ref-21" class="reference"><a href="#cite_note-21"><span class="cite-bracket">[</span>n 13<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-FP_20-3" class="reference"><a href="#cite_note-FP-20"><span class="cite-bracket">[</span>n 12<span class="cite-bracket">]</span></a></sup> </td> <td style="text-align:right">36 </td> <td style="text-align:right">50 </td> <td>85.9106106247(40) </td> <td colspan="3" align="center"><b><a href="/wiki/Observationally_Stable" class="mw-redirect" title="Observationally Stable">Observationally Stable</a></b><sup id="cite_ref-22" class="reference"><a href="#cite_note-22"><span class="cite-bracket">[</span>n 14<span class="cite-bracket">]</span></a></sup> </td> <td>0+ </td> <td>0.17279(41) </td> <td> </td></tr> <tr id="Krypton-87"> <td><sup>87</sup>Kr </td> <td style="text-align:right">36 </td> <td style="text-align:right">51 </td> <td>86.91335476(26) </td> <td>76.3(5) min </td> <td>β<sup>−</sup> </td> <td><i><b><sup>87</sup>Rb</b></i> </td> <td>5/2+ </td> <td> </td> <td> </td></tr> <tr id="Krypton-88"> <td><sup>88</sup>Kr </td> <td style="text-align:right">36 </td> <td style="text-align:right">52 </td> <td>87.9144479(28) </td> <td>2.825(19) h </td> <td>β<sup>−</sup> </td> <td><sup>88</sup>Rb </td> <td>0+ </td> <td> </td> <td> </td></tr> <tr id="Krypton-89"> <td><sup>89</sup>Kr<sup id="cite_ref-FP_20-4" class="reference"><a href="#cite_note-FP-20"><span class="cite-bracket">[</span>n 12<span class="cite-bracket">]</span></a></sup> </td> <td style="text-align:right">36 </td> <td style="text-align:right">53 </td> <td>88.9178354(23) </td> <td>3.15(4) min </td> <td>β<sup>−</sup> </td> <td><sup>89</sup>Rb </td> <td>3/2+ </td> <td> </td> <td> </td></tr> <tr id="Krypton-90"> <td><sup>90</sup>Kr </td> <td style="text-align:right">36 </td> <td style="text-align:right">54 </td> <td>89.9195279(20) </td> <td>32.32(9) s </td> <td>β<sup>−</sup> </td> <td><sup>90m</sup>Rb </td> <td>0+ </td> <td> </td> <td> </td></tr> <tr id="Krypton-91"> <td rowspan="2"><sup>91</sup>Kr </td> <td rowspan="2" style="text-align:right">36 </td> <td rowspan="2" style="text-align:right">55 </td> <td rowspan="2">90.9238063(24) </td> <td rowspan="2">8.57(4) s </td> <td>β<sup>−</sup> </td> <td><sup>91</sup>Rb </td> <td rowspan="2">5/2+ </td> <td rowspan="2"> </td> <td rowspan="2"> </td></tr> <tr> <td>β<sup>−</sup>, n? </td> <td><sup>90</sup>Rb </td></tr> <tr id="Krypton-92"> <td rowspan="2"><sup>92</sup>Kr<sup id="cite_ref-FP_20-5" class="reference"><a href="#cite_note-FP-20"><span class="cite-bracket">[</span>n 12<span class="cite-bracket">]</span></a></sup> </td> <td rowspan="2" style="text-align:right">36 </td> <td rowspan="2" style="text-align:right">56 </td> <td rowspan="2">91.9261731(29) </td> <td rowspan="2">1.840(8) s </td> <td>β<sup>−</sup> (99.97%) </td> <td><sup>92</sup>Rb </td> <td rowspan="2">0+ </td> <td rowspan="2"> </td> <td rowspan="2"> </td></tr> <tr> <td>β<sup>−</sup>, <a href="/wiki/Neutron_emission" title="Neutron emission">n</a> (0.0332%) </td> <td><sup>91</sup>Rb </td></tr> <tr id="Krypton-93"> <td rowspan="2"><sup>93</sup>Kr </td> <td rowspan="2" style="text-align:right">36 </td> <td rowspan="2" style="text-align:right">57 </td> <td rowspan="2">92.9311472(27) </td> <td rowspan="2">1.287(10) s </td> <td>β<sup>−</sup> (98.05%) </td> <td><sup>93</sup>Rb </td> <td rowspan="2">1/2+ </td> <td rowspan="2"> </td> <td rowspan="2"> </td></tr> <tr> <td>β<sup>−</sup>, n (1.95%) </td> <td><sup>92</sup>Rb </td></tr> <tr id="Krypton-94"> <td rowspan="2"><sup>94</sup>Kr </td> <td rowspan="2" style="text-align:right">36 </td> <td rowspan="2" style="text-align:right">58 </td> <td rowspan="2">93.934140(13) </td> <td rowspan="2">212(4) ms </td> <td>β<sup>−</sup> (98.89%) </td> <td><sup>94</sup>Rb </td> <td rowspan="2">0+ </td> <td rowspan="2"> </td> <td rowspan="2"> </td></tr> <tr> <td>β<sup>−</sup>, n (1.11%) </td> <td><sup>93</sup>Rb </td></tr> <tr id="Krypton-95"> <td rowspan="3"><sup>95</sup>Kr </td> <td rowspan="3" style="text-align:right">36 </td> <td rowspan="3" style="text-align:right">59 </td> <td rowspan="3">94.939711(20) </td> <td rowspan="3">114(3) ms </td> <td>β<sup>−</sup> (97.13%) </td> <td><sup>95</sup>Rb </td> <td rowspan="3">1/2+ </td> <td rowspan="3"> </td> <td rowspan="3"> </td></tr> <tr> <td>β<sup>−</sup>, n (2.87%) </td> <td><sup>94</sup>Rb </td></tr> <tr> <td>β<sup>−</sup>, 2n? </td> <td><sup>93</sup>Rb </td></tr> <tr id="Krypton-95m"> <td style="text-indent:1em"><sup>95m</sup>Kr </td> <td colspan="3" style="text-indent:2em">195.5(3) keV </td> <td>1.582(22) μs<br /> </td> <td>IT </td> <td><sup>85</sup>Kr </td> <td>(7/2+) </td> <td> </td> <td> </td></tr> <tr id="Krypton-96"> <td rowspan="2"><sup>96</sup>Kr </td> <td rowspan="2" style="text-align:right">36 </td> <td rowspan="2" style="text-align:right">60 </td> <td rowspan="2">95.942998(62)<sup id="cite_ref-23" class="reference"><a href="#cite_note-23"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </td> <td rowspan="2">80(8) ms </td> <td>β<sup>−</sup> (96.3%) </td> <td><sup>96</sup>Rb </td> <td rowspan="2">0+ </td> <td rowspan="2"> </td> <td rowspan="2"> </td></tr> <tr> <td>β<sup>−</sup>, n (3.7%) </td> <td><sup>95</sup>Rb </td></tr> <tr id="Krypton-97"> <td rowspan="3"><sup>97</sup>Kr </td> <td rowspan="3" style="text-align:right">36 </td> <td rowspan="3" style="text-align:right">61 </td> <td rowspan="3">96.94909(14) </td> <td rowspan="3">62.2(32) ms </td> <td>β<sup>−</sup> (93.3%) </td> <td><sup>97</sup>Rb </td> <td rowspan="3">3/2+# </td> <td rowspan="3"> </td> <td rowspan="3"> </td></tr> <tr> <td>β<sup>−</sup>, n (6.7%) </td> <td><sup>96</sup>Rb </td></tr> <tr> <td>β<sup>−</sup>, 2n? </td> <td><sup>95</sup>Rb </td></tr> <tr id="Krypton-98"> <td rowspan="3"><sup>98</sup>Kr </td> <td rowspan="3" style="text-align:right">36 </td> <td rowspan="3" style="text-align:right">62 </td> <td rowspan="3">97.95264(32)# </td> <td rowspan="3">42.8(36) ms </td> <td>β<sup>−</sup> (93.0%) </td> <td><sup>98</sup>Rb </td> <td rowspan="3">0+ </td> <td rowspan="3"> </td> <td rowspan="3"> </td></tr> <tr> <td>β<sup>−</sup>, n (7.0%) </td> <td><sup>97</sup>Rb </td></tr> <tr> <td>β<sup>−</sup>, 2n? </td> <td><sup>96</sup>Rb </td></tr> <tr id="Krypton-99"> <td rowspan="3"><sup>99</sup>Kr </td> <td rowspan="3" style="text-align:right">36 </td> <td rowspan="3" style="text-align:right">63 </td> <td rowspan="3">98.95878(43)# </td> <td rowspan="3">40(11) ms </td> <td>β<sup>−</sup> (89%) </td> <td><sup>99</sup>Rb </td> <td rowspan="3">5/2−# </td> <td rowspan="3"> </td> <td rowspan="3"> </td></tr> <tr> <td>β<sup>−</sup>, n (11%) </td> <td><sup>98</sup>Rb </td></tr> <tr> <td>β<sup>−</sup>, 2n? </td> <td><sup>97</sup>Rb </td></tr> <tr id="Krypton-100"> <td rowspan="3"><sup>100</sup>Kr </td> <td rowspan="3" style="text-align:right">36 </td> <td rowspan="3" style="text-align:right">64 </td> <td rowspan="3">99.96300(43)# </td> <td rowspan="3">12(8) ms </td> <td>β<sup>−</sup> </td> <td><sup>100</sup>Rb </td> <td rowspan="3">0+ </td> <td rowspan="3"> </td> <td rowspan="3"> </td></tr> <tr> <td>β<sup>−</sup>, n? </td> <td><sup>99</sup>Rb </td></tr> <tr> <td>β<sup>−</sup>, 2n? </td> <td><sup>98</sup>Rb </td></tr> <tr id="Krypton-101"> <td rowspan="3"><sup>101</sup>Kr </td> <td rowspan="3">36 </td> <td rowspan="3">65 </td> <td rowspan="3">100.96932(54)# </td> <td rowspan="3">9# ms<br />[>400 ns] </td> <td>β<sup>−</sup>? </td> <td><sup>101</sup>Rb </td> <td rowspan="3">5/2+# </td> <td rowspan="3"> </td> <td rowspan="3"> </td></tr> <tr> <td>β<sup>−</sup>, n? </td> <td><sup>100</sup>Rb </td></tr> <tr> <td>β<sup>−</sup>, 2n? </td> <td><sup>99</sup>Rb </td></tr> <tr id="Krypton-102"> <td><sup>102</sup>Kr<sup id="cite_ref-101Br-aps_24-0" class="reference"><a href="#cite_note-101Br-aps-24"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> </td> <td style="text-align:right">36 </td> <td style="text-align:right">66 </td> <td> </td> <td> </td> <td> </td> <td> </td> <td>0+ </td> <td> </td> <td> </td></tr> <tr id="Krypton-103"> <td><sup>103</sup>Kr<sup id="cite_ref-25" class="reference"><a href="#cite_note-25"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> </td> <td style="text-align:right">36 </td> <td style="text-align:right">67 </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </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 mw-references-columns"><ol class="references"> <li id="cite_note-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-7">^</a></b></span> <span class="reference-text"><sup>m</sup>Kr –  Excited <a href="/wiki/Nuclear_isomer" title="Nuclear isomer">nuclear isomer</a>.</span> </li> <li id="cite_note-9"><span class="mw-cite-backlink"><b><a href="#cite_ref-9">^</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-10"><span class="mw-cite-backlink"><b><a href="#cite_ref-TMS_10-0">^</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-11"><span class="mw-cite-backlink"><b><a href="#cite_ref-11">^</a></b></span> <span class="reference-text"><b>Bold half-life</b> –  nearly stable, half-life longer than <a href="/wiki/Age_of_universe" class="mw-redirect" title="Age of universe">age of universe</a>.</span> </li> <li id="cite_note-TNN-12"><span class="mw-cite-backlink">^ <a href="#cite_ref-TNN_12-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-TNN_12-1"><sup><i><b>b</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-13"><span class="mw-cite-backlink"><b><a href="#cite_ref-13">^</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>n:</td> <td><a href="/wiki/Neutron_emission" title="Neutron emission">Neutron emission</a> </td></tr></tbody></table></span> </li> <li id="cite_note-14"><span class="mw-cite-backlink"><b><a href="#cite_ref-14">^</a></b></span> <span class="reference-text"><i><b>Bold italics symbol</b></i> as daughter –  Daughter product is nearly stable.</span> </li> <li id="cite_note-15"><span class="mw-cite-backlink"><b><a href="#cite_ref-15">^</a></b></span> <span class="reference-text"><b>Bold symbol</b> as daughter –  Daughter product is stable.</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">( ) spin value –  Indicates spin with weak assignment arguments.</span> </li> <li id="cite_note-17"><span class="mw-cite-backlink"><b><a href="#cite_ref-17">^</a></b></span> <span class="reference-text"><a href="/wiki/Primordial_nuclide" title="Primordial nuclide">Primordial</a> <a href="/wiki/Radionuclide" title="Radionuclide">radionuclide</a></span> </li> <li id="cite_note-18"><span class="mw-cite-backlink"><b><a href="#cite_ref-18">^</a></b></span> <span class="reference-text">Used to date <a href="/wiki/Groundwater" title="Groundwater">groundwater</a></span> </li> <li id="cite_note-FP-20"><span class="mw-cite-backlink">^ <a href="#cite_ref-FP_20-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-FP_20-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-FP_20-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-FP_20-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-FP_20-4"><sup><i><b>e</b></i></sup></a> <a href="#cite_ref-FP_20-5"><sup><i><b>f</b></i></sup></a></span> <span class="reference-text"><a href="/wiki/Fission_product" class="mw-redirect" title="Fission product">Fission product</a></span> </li> <li id="cite_note-21"><span class="mw-cite-backlink"><b><a href="#cite_ref-21">^</a></b></span> <span class="reference-text">Formerly used to <a href="/wiki/History_of_the_metre#Krypton_standard" title="History of the metre">define the meter</a></span> </li> <li id="cite_note-22"><span class="mw-cite-backlink"><b><a href="#cite_ref-22">^</a></b></span> <span class="reference-text">Believed to decay by β<sup>−</sup>β<sup>−</sup> to <b><sup>86</sup>Sr</b></span> </li> </ol></div> <ul><li>The isotopic composition refers to that in air.</li></ul> <div class="mw-heading mw-heading2"><h2 id="Notable_isotopes">Notable isotopes</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Isotopes_of_krypton&action=edit&section=2" title="Edit section: Notable isotopes"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1251242444">.mw-parser-output .ambox{border:1px solid #a2a9b1;border-left:10px solid #36c;background-color:#fbfbfb;box-sizing:border-box}.mw-parser-output .ambox+link+.ambox,.mw-parser-output .ambox+link+style+.ambox,.mw-parser-output .ambox+link+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+style+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+link+.ambox{margin-top:-1px}html body.mediawiki .mw-parser-output .ambox.mbox-small-left{margin:4px 1em 4px 0;overflow:hidden;width:238px;border-collapse:collapse;font-size:88%;line-height:1.25em}.mw-parser-output .ambox-speedy{border-left:10px solid #b32424;background-color:#fee7e6}.mw-parser-output .ambox-delete{border-left:10px solid #b32424}.mw-parser-output .ambox-content{border-left:10px solid #f28500}.mw-parser-output .ambox-style{border-left:10px solid #fc3}.mw-parser-output .ambox-move{border-left:10px solid #9932cc}.mw-parser-output .ambox-protection{border-left:10px solid #a2a9b1}.mw-parser-output .ambox .mbox-text{border:none;padding:0.25em 0.5em;width:100%}.mw-parser-output .ambox .mbox-image{border:none;padding:2px 0 2px 0.5em;text-align:center}.mw-parser-output .ambox .mbox-imageright{border:none;padding:2px 0.5em 2px 0;text-align:center}.mw-parser-output .ambox .mbox-empty-cell{border:none;padding:0;width:1px}.mw-parser-output .ambox .mbox-image-div{width:52px}@media(min-width:720px){.mw-parser-output .ambox{margin:0 10%}}@media print{body.ns-0 .mw-parser-output .ambox{display:none!important}}</style><table class="box-More_citations_needed_section plainlinks metadata ambox ambox-content ambox-Refimprove" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><a href="/wiki/File:Question_book-new.svg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/50px-Question_book-new.svg.png" decoding="async" width="50" height="39" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/75px-Question_book-new.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/100px-Question_book-new.svg.png 2x" data-file-width="512" data-file-height="399" /></a></span></div></td><td class="mbox-text"><div class="mbox-text-span">This section <b>needs additional citations for <a href="/wiki/Wikipedia:Verifiability" title="Wikipedia:Verifiability">verification</a></b>.<span class="hide-when-compact"> Please help <a href="/wiki/Special:EditPage/Isotopes_of_krypton" title="Special:EditPage/Isotopes of krypton">improve this article</a> by <a href="/wiki/Help:Referencing_for_beginners" title="Help:Referencing for beginners">adding citations to reliable sources</a> in this section. Unsourced material may be challenged and removed.</span> <span class="date-container"><i>(<span class="date">May 2018</span>)</i></span><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> <div class="mw-heading mw-heading3"><h3 id="Krypton-81">Krypton-81</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Isotopes_of_krypton&action=edit&section=3" title="Edit section: Krypton-81"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1251242444"><table class="box-Expand_section plainlinks metadata ambox mbox-small-left ambox-content" role="presentation"><tbody><tr><td class="mbox-image"><span typeof="mw:File"><a href="/wiki/File:Wiki_letter_w_cropped.svg" class="mw-file-description"><img alt="[icon]" src="//upload.wikimedia.org/wikipedia/commons/thumb/1/1c/Wiki_letter_w_cropped.svg/20px-Wiki_letter_w_cropped.svg.png" decoding="async" width="20" height="14" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/1c/Wiki_letter_w_cropped.svg/30px-Wiki_letter_w_cropped.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/1c/Wiki_letter_w_cropped.svg/40px-Wiki_letter_w_cropped.svg.png 2x" data-file-width="44" data-file-height="31" /></a></span></td><td class="mbox-text"><div class="mbox-text-span">This section <b>needs expansion</b> with: Usage in hydrogeology, ATC=V09. You can help by <a class="external text" href="https://en.wikipedia.org/w/index.php?title=Isotopes_of_krypton&action=edit&section=">adding to it</a>. <span class="date-container"><i>(<span class="date">October 2019</span>)</i></span></div></td></tr></tbody></table> <p>Krypton-81 is useful in determining how old the water beneath the ground is.<sup id="cite_ref-26" class="reference"><a href="#cite_note-26"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> Radioactive krypton-81 is the product of <a href="/wiki/Spallation_reaction" class="mw-redirect" title="Spallation reaction">spallation reactions</a> with <a href="/wiki/Cosmic_ray" title="Cosmic ray">cosmic rays</a> striking gases present in the Earth atmosphere, along with the six stable or nearly stable krypton <a href="/wiki/Isotope" title="Isotope">isotopes</a>.<sup id="cite_ref-cosmo_27-0" class="reference"><a href="#cite_note-cosmo-27"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> Krypton-81 has a <a href="/wiki/Half-life" title="Half-life">half-life</a> of about 229,000 years. </p><p>Krypton-81 is used for dating ancient (50,000- to 800,000-year-old) <a href="/wiki/Groundwater" title="Groundwater">groundwater</a> and to determine their <a href="/wiki/Residence_time" title="Residence time">residence time</a> in deep <a href="/wiki/Aquifer" title="Aquifer">aquifers</a>. One of the main technical limitations of the method is that it requires the sampling of very large volumes of water: several hundred liters or a few cubic meters of water. This is particularly challenging for dating <a href="/wiki/Pore_water" class="mw-redirect" title="Pore water">pore water</a> in deep <a href="/wiki/Clay" title="Clay">clay</a> <a href="/wiki/Aquitard" class="mw-redirect" title="Aquitard">aquitards</a> with very low <a href="/wiki/Hydraulic_conductivity" title="Hydraulic conductivity">hydraulic conductivity</a>.<sup id="cite_ref-28" class="reference"><a href="#cite_note-28"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Krypton-85">Krypton-85</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Isotopes_of_krypton&action=edit&section=4" title="Edit section: Krypton-85"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1236090951">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">Main article: <a href="/wiki/Krypton-85" title="Krypton-85">Krypton-85</a></div> <p>Krypton-85 has a half-life of about 10.75 years. This isotope is produced by the <a href="/wiki/Nuclear_fission" title="Nuclear fission">nuclear fission</a> of <a href="/wiki/Uranium" title="Uranium">uranium</a> and <a href="/wiki/Plutonium" title="Plutonium">plutonium</a> in <a href="/wiki/Nuclear_weapons_testing" title="Nuclear weapons testing">nuclear weapons testing</a> and in <a href="/wiki/Nuclear_reactor" title="Nuclear reactor">nuclear reactors</a>, as well as by cosmic rays. An important goal of the <a href="/wiki/Partial_Nuclear_Test_Ban_Treaty" title="Partial Nuclear Test Ban Treaty">Limited Nuclear Test Ban Treaty</a> of 1963 was to eliminate the release of such radioisotopes into the atmosphere, and since 1963 much of that krypton-85 has had time to decay. However, it is inevitable that krypton-85 is released during the <a href="/wiki/Nuclear_reprocessing" title="Nuclear reprocessing">reprocessing</a> of <a href="/wiki/Fuel_rod" class="mw-redirect" title="Fuel rod">fuel rods</a> from nuclear reactors.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (February 2022)">citation needed</span></a></i>]</sup> </p> <div class="mw-heading mw-heading4"><h4 id="Atmospheric_concentration">Atmospheric concentration</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Isotopes_of_krypton&action=edit&section=5" title="Edit section: Atmospheric concentration"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236090951"><div role="note" class="hatnote navigation-not-searchable">See also: <a href="/wiki/Nuclear_reprocessing" title="Nuclear reprocessing">Nuclear reprocessing</a></div> <p>The atmospheric concentration of krypton-85 around the <a href="/wiki/North_Pole" title="North Pole">North Pole</a> is about 30 percent higher than that at the <a href="/wiki/Amundsen%E2%80%93Scott_South_Pole_Station" title="Amundsen–Scott South Pole Station">Amundsen–Scott South Pole Station</a> because nearly all of the world's nuclear reactors and all of its major nuclear reprocessing plants are located in the <a href="/wiki/Northern_hemisphere" class="mw-redirect" title="Northern hemisphere">northern hemisphere</a>, and also well-north of the <a href="/wiki/Equator" title="Equator">equator</a>.<sup id="cite_ref-29" class="reference"><a href="#cite_note-29"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> To be more specific, those <a href="/wiki/Nuclear_reprocessing" title="Nuclear reprocessing">nuclear reprocessing</a> plants with significant capacities are located in the <a href="/wiki/United_States" title="United States">United States</a>, the <a href="/wiki/United_Kingdom" title="United Kingdom">United Kingdom</a>, the <a href="/wiki/French_Republic" class="mw-redirect" title="French Republic">French Republic</a>, the <a href="/wiki/Russia" title="Russia">Russian Federation</a>, <a href="/wiki/People%27s_Republic_of_China" class="mw-redirect" title="People's Republic of China">Mainland China</a> (PRC), <a href="/wiki/Japan" title="Japan">Japan</a>, <a href="/wiki/India" title="India">India</a>, and <a href="/wiki/Pakistan" title="Pakistan">Pakistan</a>. </p> <div class="mw-heading mw-heading3"><h3 id="Krypton-86">Krypton-86</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Isotopes_of_krypton&action=edit&section=6" title="Edit section: Krypton-86"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Krypton-86 was formerly used to <a href="/wiki/History_of_the_metre#Krypton_standard" title="History of the metre">define the meter</a> from 1960 until 1983, when the definition of the meter was based on the wavelength of the 606 nm (orange) spectral line of a krypton-86 atom.<sup id="cite_ref-30" class="reference"><a href="#cite_note-30"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Others">Others</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Isotopes_of_krypton&action=edit&section=7" title="Edit section: Others"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>All other <a href="/wiki/Radioisotope" class="mw-redirect" title="Radioisotope">radioisotopes</a> of krypton have half-lives of less than one day, except for krypton-79, a <a href="/wiki/Positron_emission" title="Positron emission">positron emitter</a> with a half-life of about 35.0 hours. </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_krypton&action=edit&section=8" 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 mw-references-columns"><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> <a href="#cite_ref-NUBASE2020_1-4"><sup><i><b>e</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. G.; Wang, M.; Huang, W. J.; Naimi, S.; Audi, G. (2021). <a rel="nofollow" class="external text" href="https://www-nds.iaea.org/amdc/ame2020/NUBASE2020.pdf">"The NUBASE2020 evaluation of nuclear properties"</a> <span class="cs1-format">(PDF)</span>. <i>Chinese Physics C</i>. <b>45</b> (3): 030001. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1088%2F1674-1137%2Fabddae">10.1088/1674-1137/abddae</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Chinese+Physics+C&rft.atitle=The+NUBASE2020+evaluation+of+nuclear+properties&rft.volume=45&rft.issue=3&rft.pages=030001&rft.date=2021&rft_id=info%3Adoi%2F10.1088%2F1674-1137%2Fabddae&rft.aulast=Kondev&rft.aufirst=F.+G.&rft.au=Wang%2C+M.&rft.au=Huang%2C+W.+J.&rft.au=Naimi%2C+S.&rft.au=Audi%2C+G.&rft_id=https%3A%2F%2Fwww-nds.iaea.org%2Famdc%2Fame2020%2FNUBASE2020.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3AIsotopes+of+krypton" class="Z3988"></span> </span> </li> <li id="cite_note-Patrignani2016-2"><span class="mw-cite-backlink">^ <a href="#cite_ref-Patrignani2016_2-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Patrignani2016_2-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFPatrignani2016" class="citation journal cs1">Patrignani, C.; et al. (<a href="/wiki/Particle_Data_Group" title="Particle Data Group">Particle Data Group</a>) (2016). "Review of Particle Physics". <i><a href="/wiki/Chinese_Physics_C" title="Chinese Physics C">Chinese Physics C</a></i>. <b>40</b> (10): 100001. <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/2016ChPhC..40j0001P">2016ChPhC..40j0001P</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1088%2F1674-1137%2F40%2F10%2F100001">10.1088/1674-1137/40/10/100001</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Chinese+Physics+C&rft.atitle=Review+of+Particle+Physics&rft.volume=40&rft.issue=10&rft.pages=100001&rft.date=2016&rft_id=info%3Adoi%2F10.1088%2F1674-1137%2F40%2F10%2F100001&rft_id=info%3Abibcode%2F2016ChPhC..40j0001P&rft.aulast=Patrignani&rft.aufirst=C.&rfr_id=info%3Asid%2Fen.wikipedia.org%3AIsotopes+of+krypton" class="Z3988"></span> See p. 768</span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</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="https://www.ciaaw.org/krypton.htm">"Standard Atomic Weights: Krypton"</a>. <a href="/wiki/Commission_on_Isotopic_Abundances_and_Atomic_Weights" title="Commission on Isotopic Abundances and Atomic Weights">CIAAW</a>. 2001.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Standard+Atomic+Weights%3A+Krypton&rft.pub=CIAAW&rft.date=2001&rft_id=https%3A%2F%2Fwww.ciaaw.org%2Fkrypton.htm&rfr_id=info%3Asid%2Fen.wikipedia.org%3AIsotopes+of+krypton" class="Z3988"></span></span> </li> <li id="cite_note-CIAAW2021-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-CIAAW2021_4-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFProhaskaIrrgeherBenefieldBöhlke2022" class="citation journal cs1">Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; Böhlke, John K.; Chesson, Lesley A.; Coplen, Tyler B.; Ding, Tiping; Dunn, Philip J. H.; Gröning, Manfred; Holden, Norman E.; Meijer, Harro A. J. (2022-05-04). <a rel="nofollow" class="external text" href="https://www.degruyter.com/document/doi/10.1515/pac-2019-0603/html">"Standard atomic weights of the elements 2021 (IUPAC Technical Report)"</a>. <i>Pure and Applied Chemistry</i>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1515%2Fpac-2019-0603">10.1515/pac-2019-0603</a>. <a href="/wiki/ISSN_(identifier)" class="mw-redirect" title="ISSN (identifier)">ISSN</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/issn/1365-3075">1365-3075</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Pure+and+Applied+Chemistry&rft.atitle=Standard+atomic+weights+of+the+elements+2021+%28IUPAC+Technical+Report%29&rft.date=2022-05-04&rft_id=info%3Adoi%2F10.1515%2Fpac-2019-0603&rft.issn=1365-3075&rft.aulast=Prohaska&rft.aufirst=Thomas&rft.au=Irrgeher%2C+Johanna&rft.au=Benefield%2C+Jacqueline&rft.au=B%C3%B6hlke%2C+John+K.&rft.au=Chesson%2C+Lesley+A.&rft.au=Coplen%2C+Tyler+B.&rft.au=Ding%2C+Tiping&rft.au=Dunn%2C+Philip+J.+H.&rft.au=Gr%C3%B6ning%2C+Manfred&rft.au=Holden%2C+Norman+E.&rft.au=Meijer%2C+Harro+A.+J.&rft_id=https%3A%2F%2Fwww.degruyter.com%2Fdocument%2Fdoi%2F10.1515%2Fpac-2019-0603%2Fhtml&rfr_id=info%3Asid%2Fen.wikipedia.org%3AIsotopes+of+krypton" class="Z3988"></span></span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</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="https://web.archive.org/web/20171018072258/http://www.nndc.bnl.gov/chart/reCenter.jsp?z=36&n=65">"Chart of Nuclides"</a>. Brookhaven National Laboratory. Archived from <a rel="nofollow" class="external text" href="http://www.nndc.bnl.gov/chart/reCenter.jsp?z=36&n=65">the original</a> on 2017-10-18<span class="reference-accessdate">. Retrieved <span class="nowrap">2011-11-21</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Chart+of+Nuclides&rft.pub=Brookhaven+National+Laboratory&rft_id=http%3A%2F%2Fwww.nndc.bnl.gov%2Fchart%2FreCenter.jsp%3Fz%3D36%26n%3D65&rfr_id=info%3Asid%2Fen.wikipedia.org%3AIsotopes+of+krypton" class="Z3988"></span></span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFSumikamaFukudaInabeKameda2021" class="citation journal cs1">Sumikama, T.; et al. (2021). <a rel="nofollow" class="external text" href="https://journals.aps.org/prc/abstract/10.1103/PhysRevC.103.014614">"Observation of new neutron-rich isotopes in the vicinity of Zr110"</a>. <i>Physical Review C</i>. <b>103</b> (1): 014614. <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/2021PhRvC.103a4614S">2021PhRvC.103a4614S</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1103%2FPhysRevC.103.014614">10.1103/PhysRevC.103.014614</a>. <a href="/wiki/Hdl_(identifier)" class="mw-redirect" title="Hdl (identifier)">hdl</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://hdl.handle.net/10261%2F260248">10261/260248</a></span>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a> <a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:234019083">234019083</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Physical+Review+C&rft.atitle=Observation+of+new+neutron-rich+isotopes+in+the+vicinity+of+Zr110&rft.volume=103&rft.issue=1&rft.pages=014614&rft.date=2021&rft_id=info%3Ahdl%2F10261%2F260248&rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A234019083%23id-name%3DS2CID&rft_id=info%3Adoi%2F10.1103%2FPhysRevC.103.014614&rft_id=info%3Abibcode%2F2021PhRvC.103a4614S&rft.aulast=Sumikama&rft.aufirst=T.&rft.au=Fukuda%2C+N.&rft.au=Inabe%2C+N.&rft.au=Kameda%2C+D.&rft.au=Kubo%2C+T.&rft.au=Shimizu%2C+Y.&rft.au=Suzuki%2C+H.&rft.au=Takeda%2C+H.&rft.au=Yoshida%2C+K.&rft.au=Baba%2C+H.&rft.au=Browne%2C+F.&rft.au=Bruce%2C+A.+M.&rft.au=Carroll%2C+R.&rft.au=Chiga%2C+N.&rft.au=Daido%2C+R.&rft.au=Didierjean%2C+F.&rft.au=Doornenbal%2C+P.&rft.au=Fang%2C+Y.&rft.au=Gey%2C+G.&rft.au=Ideguchi%2C+E.&rft.au=Isobe%2C+T.&rft.au=Lalkovski%2C+S.&rft.au=Li%2C+Z.&rft.au=Lorusso%2C+G.&rft.au=Lozeva%2C+R.&rft.au=Nishibata%2C+H.&rft.au=Nishimura%2C+S.&rft.au=Nishizuka%2C+I.&rft.au=Odahara%2C+A.&rft.au=Patel%2C+Z.&rft_id=https%3A%2F%2Fjournals.aps.org%2Fprc%2Fabstract%2F10.1103%2FPhysRevC.103.014614&rfr_id=info%3Asid%2Fen.wikipedia.org%3AIsotopes+of+krypton" class="Z3988"></span></span> </li> <li id="cite_note-AME2020_II-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-AME2020_II_8-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFWangHuangKondevAudi2021" class="citation journal cs1">Wang, Meng; Huang, W.J.; Kondev, F.G.; Audi, G.; Naimi, S. (2021). "The AME 2020 atomic mass evaluation (II). Tables, graphs and references*". <i>Chinese Physics C</i>. <b>45</b> (3): 030003. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1088%2F1674-1137%2Fabddaf">10.1088/1674-1137/abddaf</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Chinese+Physics+C&rft.atitle=The+AME+2020+atomic+mass+evaluation+%28II%29.+Tables%2C+graphs+and+references%2A&rft.volume=45&rft.issue=3&rft.pages=030003&rft.date=2021&rft_id=info%3Adoi%2F10.1088%2F1674-1137%2Fabddaf&rft.aulast=Wang&rft.aufirst=Meng&rft.au=Huang%2C+W.J.&rft.au=Kondev%2C+F.G.&rft.au=Audi%2C+G.&rft.au=Naimi%2C+S.&rfr_id=info%3Asid%2Fen.wikipedia.org%3AIsotopes+of+krypton" class="Z3988"></span></span> </li> <li id="cite_note-zheng-tian-19"><span class="mw-cite-backlink">^ <a href="#cite_ref-zheng-tian_19-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-zheng-tian_19-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFLu2013" class="citation journal cs1">Lu, Zheng-Tian (1 March 2013). <a rel="nofollow" class="external text" href="https://pubs.aip.org/physicstoday/article/66/3/74/414350/What-trapped-atoms-reveal-about-global">"What trapped atoms reveal about global groundwater"</a>. <i>Physics Today</i>. <b>66</b> (3): 74–75. <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/2013PhT....66c..74L">2013PhT....66c..74L</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1063%2FPT.3.1926">10.1063/PT.3.1926</a><span class="reference-accessdate">. Retrieved <span class="nowrap">29 June</span> 2024</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Physics+Today&rft.atitle=What+trapped+atoms+reveal+about+global+groundwater&rft.volume=66&rft.issue=3&rft.pages=74-75&rft.date=2013-03-01&rft_id=info%3Adoi%2F10.1063%2FPT.3.1926&rft_id=info%3Abibcode%2F2013PhT....66c..74L&rft.aulast=Lu&rft.aufirst=Zheng-Tian&rft_id=https%3A%2F%2Fpubs.aip.org%2Fphysicstoday%2Farticle%2F66%2F3%2F74%2F414350%2FWhat-trapped-atoms-reveal-about-global&rfr_id=info%3Asid%2Fen.wikipedia.org%3AIsotopes+of+krypton" class="Z3988"></span></span> </li> <li id="cite_note-23"><span class="mw-cite-backlink"><b><a href="#cite_ref-23">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFSmithMurböckDunlingJacobs2020" class="citation journal cs1">Smith, Matthew B.; Murböck, Tobias; Dunling, Eleanor; Jacobs, Andrew; Kootte, Brian; Lan, Yang; Leistenschneider, Erich; Lunney, David; Lykiardopoulou, Eleni Marina; Mukul, Ish; Paul, Stefan F.; Reiter, Moritz P.; Will, Christian; Dilling, Jens; Kwiatkowski, Anna A. (2020). <a rel="nofollow" class="external text" href="https://link.springer.com/article/10.1007/s10751-020-01722-2">"High-precision mass measurement of neutron-rich 96Kr"</a>. <i>Hyperfine Interactions</i>. <b>241</b> (1): 59. <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/2020HyInt.241...59S">2020HyInt.241...59S</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1007%2Fs10751-020-01722-2">10.1007/s10751-020-01722-2</a>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a> <a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:220512482">220512482</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Hyperfine+Interactions&rft.atitle=High-precision+mass+measurement+of+neutron-rich+96Kr&rft.volume=241&rft.issue=1&rft.pages=59&rft.date=2020&rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A220512482%23id-name%3DS2CID&rft_id=info%3Adoi%2F10.1007%2Fs10751-020-01722-2&rft_id=info%3Abibcode%2F2020HyInt.241...59S&rft.aulast=Smith&rft.aufirst=Matthew+B.&rft.au=Murb%C3%B6ck%2C+Tobias&rft.au=Dunling%2C+Eleanor&rft.au=Jacobs%2C+Andrew&rft.au=Kootte%2C+Brian&rft.au=Lan%2C+Yang&rft.au=Leistenschneider%2C+Erich&rft.au=Lunney%2C+David&rft.au=Lykiardopoulou%2C+Eleni+Marina&rft.au=Mukul%2C+Ish&rft.au=Paul%2C+Stefan+F.&rft.au=Reiter%2C+Moritz+P.&rft.au=Will%2C+Christian&rft.au=Dilling%2C+Jens&rft.au=Kwiatkowski%2C+Anna+A.&rft_id=https%3A%2F%2Flink.springer.com%2Farticle%2F10.1007%2Fs10751-020-01722-2&rfr_id=info%3Asid%2Fen.wikipedia.org%3AIsotopes+of+krypton" class="Z3988"></span></span> </li> <li id="cite_note-101Br-aps-24"><span class="mw-cite-backlink"><b><a href="#cite_ref-101Br-aps_24-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFSumikamaFukudaInabeKameda2021" class="citation journal cs1">Sumikama, T.; et al. (2021). <a rel="nofollow" class="external text" href="https://journals.aps.org/prc/abstract/10.1103/PhysRevC.103.014614">"Observation of new neutron-rich isotopes in the vicinity of Zr110"</a>. <i>Physical Review C</i>. <b>103</b> (1): 014614. <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/2021PhRvC.103a4614S">2021PhRvC.103a4614S</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1103%2FPhysRevC.103.014614">10.1103/PhysRevC.103.014614</a>. <a href="/wiki/Hdl_(identifier)" class="mw-redirect" title="Hdl (identifier)">hdl</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://hdl.handle.net/10261%2F260248">10261/260248</a></span>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a> <a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:234019083">234019083</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Physical+Review+C&rft.atitle=Observation+of+new+neutron-rich+isotopes+in+the+vicinity+of+Zr110&rft.volume=103&rft.issue=1&rft.pages=014614&rft.date=2021&rft_id=info%3Ahdl%2F10261%2F260248&rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A234019083%23id-name%3DS2CID&rft_id=info%3Adoi%2F10.1103%2FPhysRevC.103.014614&rft_id=info%3Abibcode%2F2021PhRvC.103a4614S&rft.aulast=Sumikama&rft.aufirst=T.&rft.au=Fukuda%2C+N.&rft.au=Inabe%2C+N.&rft.au=Kameda%2C+D.&rft.au=Kubo%2C+T.&rft.au=Shimizu%2C+Y.&rft.au=Suzuki%2C+H.&rft.au=Takeda%2C+H.&rft.au=Yoshida%2C+K.&rft.au=Baba%2C+H.&rft.au=Browne%2C+F.&rft.au=Bruce%2C+A.+M.&rft.au=Carroll%2C+R.&rft.au=Chiga%2C+N.&rft.au=Daido%2C+R.&rft.au=Didierjean%2C+F.&rft.au=Doornenbal%2C+P.&rft.au=Fang%2C+Y.&rft.au=Gey%2C+G.&rft.au=Ideguchi%2C+E.&rft.au=Isobe%2C+T.&rft.au=Lalkovski%2C+S.&rft.au=Li%2C+Z.&rft.au=Lorusso%2C+G.&rft.au=Lozeva%2C+R.&rft.au=Nishibata%2C+H.&rft.au=Nishimura%2C+S.&rft.au=Nishizuka%2C+I.&rft.au=Odahara%2C+A.&rft.au=Patel%2C+Z.&rft_id=https%3A%2F%2Fjournals.aps.org%2Fprc%2Fabstract%2F10.1103%2FPhysRevC.103.014614&rfr_id=info%3Asid%2Fen.wikipedia.org%3AIsotopes+of+krypton" class="Z3988"></span></span> </li> <li id="cite_note-25"><span class="mw-cite-backlink"><b><a href="#cite_ref-25">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFShimizuKuboSumikamaFukuda2024" class="citation journal cs1">Shimizu, Y.; Kubo, T.; Sumikama, T.; Fukuda, N.; Takeda, H.; Suzuki, H.; Ahn, D. S.; Inabe, N.; Kusaka, K.; Ohtake, M.; Yanagisawa, Y.; Yoshida, K.; Ichikawa, Y.; Isobe, T.; Otsu, H.; Sato, H.; Sonoda, T.; Murai, D.; Iwasa, N.; Imai, N.; Hirayama, Y.; Jeong, S. C.; Kimura, S.; Miyatake, H.; Mukai, M.; Kim, D. G.; Kim, E.; Yagi, A. (8 April 2024). "Production of new neutron-rich isotopes near the N = 60 isotones Ge 92 and As 93 by in-flight fission of a 345 MeV/nucleon U 238 beam". <i>Physical Review C</i>. <b>109</b> (4): 044313. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1103%2FPhysRevC.109.044313">10.1103/PhysRevC.109.044313</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Physical+Review+C&rft.atitle=Production+of+new+neutron-rich+isotopes+near+the+N+%3D+60+isotones+Ge+92+and+As+93+by+in-flight+fission+of+a+345+MeV%2Fnucleon+U+238+beam&rft.volume=109&rft.issue=4&rft.pages=044313&rft.date=2024-04-08&rft_id=info%3Adoi%2F10.1103%2FPhysRevC.109.044313&rft.aulast=Shimizu&rft.aufirst=Y.&rft.au=Kubo%2C+T.&rft.au=Sumikama%2C+T.&rft.au=Fukuda%2C+N.&rft.au=Takeda%2C+H.&rft.au=Suzuki%2C+H.&rft.au=Ahn%2C+D.+S.&rft.au=Inabe%2C+N.&rft.au=Kusaka%2C+K.&rft.au=Ohtake%2C+M.&rft.au=Yanagisawa%2C+Y.&rft.au=Yoshida%2C+K.&rft.au=Ichikawa%2C+Y.&rft.au=Isobe%2C+T.&rft.au=Otsu%2C+H.&rft.au=Sato%2C+H.&rft.au=Sonoda%2C+T.&rft.au=Murai%2C+D.&rft.au=Iwasa%2C+N.&rft.au=Imai%2C+N.&rft.au=Hirayama%2C+Y.&rft.au=Jeong%2C+S.+C.&rft.au=Kimura%2C+S.&rft.au=Miyatake%2C+H.&rft.au=Mukai%2C+M.&rft.au=Kim%2C+D.+G.&rft.au=Kim%2C+E.&rft.au=Yagi%2C+A.&rfr_id=info%3Asid%2Fen.wikipedia.org%3AIsotopes+of+krypton" class="Z3988"></span></span> </li> <li id="cite_note-26"><span class="mw-cite-backlink"><b><a href="#cite_ref-26">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFLe-Yi_Tu,_Guo-Min_Yang,_Cun-Feng_Cheng,_Gu-Liang_Liu,_Xiang-Yang_Zhang,_and_Shui-Ming_Hu2014" class="citation journal cs1">Le-Yi Tu, Guo-Min Yang, Cun-Feng Cheng, Gu-Liang Liu, Xiang-Yang Zhang, and Shui-Ming Hu (2014). "Analysis of Krypton-85 and Krypton-81 in a Few Liters of Air". <i><a href="/wiki/Analytical_Chemistry" class="mw-redirect" title="Analytical Chemistry">Analytical Chemistry</a></i>. <b>86</b> (8): 4002–4007.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Analytical+Chemistry&rft.atitle=Analysis+of+Krypton-85+and+Krypton-81+in+a+Few+Liters+of+Air&rft.volume=86&rft.issue=8&rft.pages=4002-4007&rft.date=2014&rft.au=Le-Yi+Tu%2C+Guo-Min+Yang%2C+Cun-Feng+Cheng%2C+Gu-Liang+Liu%2C+Xiang-Yang+Zhang%2C+and+Shui-Ming+Hu&rfr_id=info%3Asid%2Fen.wikipedia.org%3AIsotopes+of+krypton" class="Z3988"></span><span class="cs1-maint citation-comment"><code class="cs1-code">{{<a href="/wiki/Template:Cite_journal" title="Template:Cite journal">cite journal</a>}}</code>: CS1 maint: multiple names: authors list (<a href="/wiki/Category:CS1_maint:_multiple_names:_authors_list" title="Category:CS1 maint: multiple names: authors list">link</a>)</span></span> </li> <li id="cite_note-cosmo-27"><span class="mw-cite-backlink"><b><a href="#cite_ref-cosmo_27-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFLeyaGilabertLavielleWiechert2004" class="citation journal cs1">Leya, I.; Gilabert, E.; Lavielle, B.; Wiechert, U.; Wieler, W. (2004). <a rel="nofollow" class="external text" href="https://core.ac.uk/download/pdf/51485498.pdf">"Production rates for cosmogenic krypton and argon isotopes in H-chondrites with known <sup>36</sup>Cl-<sup>36</sup>Ar ages"</a> <span class="cs1-format">(PDF)</span>. <i>Antarctic Meteorite Research</i>. <b>17</b>: 185–199. <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/2004AMR....17..185L">2004AMR....17..185L</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Antarctic+Meteorite+Research&rft.atitle=Production+rates+for+cosmogenic+krypton+and+argon+isotopes+in+H-chondrites+with+known+%3Csup%3E36%3C%2Fsup%3ECl-%3Csup%3E36%3C%2Fsup%3EAr+ages&rft.volume=17&rft.pages=185-199&rft.date=2004&rft_id=info%3Abibcode%2F2004AMR....17..185L&rft.aulast=Leya&rft.aufirst=I.&rft.au=Gilabert%2C+E.&rft.au=Lavielle%2C+B.&rft.au=Wiechert%2C+U.&rft.au=Wieler%2C+W.&rft_id=https%3A%2F%2Fcore.ac.uk%2Fdownload%2Fpdf%2F51485498.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3AIsotopes+of+krypton" class="Z3988"></span></span> </li> <li id="cite_note-28"><span class="mw-cite-backlink"><b><a href="#cite_ref-28">^</a></b></span> <span class="reference-text"> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFN._ThonnardL._D._MeKayT._C._Labotka2001" class="citation report cs1">N. Thonnard; L. D. MeKay; T. C. Labotka (2001). <a rel="nofollow" class="external text" href="https://digital.library.unt.edu/ark:/67531/metadc737461/m2/1/high_res_d/809813.pdf">Development of Laser-Based Resonance Ionization Techniques for 81-Kr and 85-Kr Measurements in the Geosciences</a> <span class="cs1-format">(PDF)</span> (Report). <a href="/wiki/University_of_Tennessee" title="University of Tennessee">University of Tennessee</a>, Institute for Rare Isotope Measurements. pp. 4–7. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.2172%2F809813">10.2172/809813</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=report&rft.btitle=Development+of+Laser-Based+Resonance+Ionization+Techniques+for+81-Kr+and+85-Kr+Measurements+in+the+Geosciences&rft.pages=4-7&rft.pub=University+of+Tennessee%2C+Institute+for+Rare+Isotope+Measurements&rft.date=2001&rft_id=info%3Adoi%2F10.2172%2F809813&rft.au=N.+Thonnard&rft.au=L.+D.+MeKay&rft.au=T.+C.+Labotka&rft_id=https%3A%2F%2Fdigital.library.unt.edu%2Fark%3A%2F67531%2Fmetadc737461%2Fm2%2F1%2Fhigh_res_d%2F809813.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3AIsotopes+of+krypton" class="Z3988"></span></span> </li> <li id="cite_note-29"><span class="mw-cite-backlink"><b><a href="#cite_ref-29">^</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="https://web.archive.org/web/20010924204348/http://wwwrcamnl.wr.usgs.gov/isoig/period/kr_iig.html">"Resources on Isotopes"</a>. <a href="/wiki/U.S._Geological_Survey" class="mw-redirect" title="U.S. Geological Survey">U.S. Geological Survey</a>. Archived from <a rel="nofollow" class="external text" href="https://wwwrcamnl.wr.usgs.gov/isoig/period/kr_iig.html">the original</a> on 2001-09-24<span class="reference-accessdate">. Retrieved <span class="nowrap">2007-03-20</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Resources+on+Isotopes&rft.pub=U.S.+Geological+Survey&rft_id=http%3A%2F%2Fwwwrcamnl.wr.usgs.gov%2Fisoig%2Fperiod%2Fkr_iig.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AIsotopes+of+krypton" class="Z3988"></span></span> </li> <li id="cite_note-30"><span class="mw-cite-backlink"><b><a href="#cite_ref-30">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFBairdHowlett1963" class="citation journal cs1">Baird, K. M.; Howlett, L. E. (1963). "The International Length Standard". <i><a href="/wiki/Applied_Optics" title="Applied Optics">Applied Optics</a></i>. <b>2</b> (5): 455–463. <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/1963ApOpt...2..455B">1963ApOpt...2..455B</a>. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1364%2FAO.2.000455">10.1364/AO.2.000455</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Applied+Optics&rft.atitle=The+International+Length+Standard&rft.volume=2&rft.issue=5&rft.pages=455-463&rft.date=1963&rft_id=info%3Adoi%2F10.1364%2FAO.2.000455&rft_id=info%3Abibcode%2F1963ApOpt...2..455B&rft.aulast=Baird&rft.aufirst=K.+M.&rft.au=Howlett%2C+L.+E.&rfr_id=info%3Asid%2Fen.wikipedia.org%3AIsotopes+of+krypton" class="Z3988"></span></span> </li> </ol></div></div> <div class="mw-heading mw-heading3"><h3 id="Sources">Sources</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Isotopes_of_krypton&action=edit&section=9" title="Edit section: Sources"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></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+krypton" class="Z3988"></span></li></ul></li> <li>Isotopic compositions and standard atomic masses from: <ul><li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFde_LaeterBöhlkeDe_BièvreHidaka2003" class="citation journal cs1"><a href="/wiki/John_Robert_de_Laeter" title="John Robert de Laeter">de Laeter, John Robert</a>; Böhlke, John Karl; De Bièvre, Paul; Hidaka, Hiroshi; Peiser, H. Steffen; Rosman, Kevin J. R.; Taylor, Philip D. P. (2003). <a rel="nofollow" class="external text" href="https://doi.org/10.1351%2Fpac200375060683">"Atomic weights of the elements. Review 2000 (IUPAC Technical Report)"</a>. <i><a href="/wiki/Pure_and_Applied_Chemistry" title="Pure and Applied Chemistry">Pure and Applied Chemistry</a></i>. <b>75</b> (6): 683–800. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://doi.org/10.1351%2Fpac200375060683">10.1351/pac200375060683</a></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Pure+and+Applied+Chemistry&rft.atitle=Atomic+weights+of+the+elements.+Review+2000+%28IUPAC+Technical+Report%29&rft.volume=75&rft.issue=6&rft.pages=683-800&rft.date=2003&rft_id=info%3Adoi%2F10.1351%2Fpac200375060683&rft.aulast=de+Laeter&rft.aufirst=John+Robert&rft.au=B%C3%B6hlke%2C+John+Karl&rft.au=De+Bi%C3%A8vre%2C+Paul&rft.au=Hidaka%2C+Hiroshi&rft.au=Peiser%2C+H.+Steffen&rft.au=Rosman%2C+Kevin+J.+R.&rft.au=Taylor%2C+Philip+D.+P.&rft_id=https%3A%2F%2Fdoi.org%2F10.1351%252Fpac200375060683&rfr_id=info%3Asid%2Fen.wikipedia.org%3AIsotopes+of+krypton" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFWieser2006" class="citation journal cs1">Wieser, Michael E. (2006). <a rel="nofollow" class="external text" href="https://doi.org/10.1351%2Fpac200678112051">"Atomic weights of the elements 2005 (IUPAC Technical Report)"</a>. <i><a href="/wiki/Pure_and_Applied_Chemistry" title="Pure and Applied Chemistry">Pure and Applied Chemistry</a></i>. <b>78</b> (11): 2051–2066. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://doi.org/10.1351%2Fpac200678112051">10.1351/pac200678112051</a></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Pure+and+Applied+Chemistry&rft.atitle=Atomic+weights+of+the+elements+2005+%28IUPAC+Technical+Report%29&rft.volume=78&rft.issue=11&rft.pages=2051-2066&rft.date=2006&rft_id=info%3Adoi%2F10.1351%2Fpac200678112051&rft.aulast=Wieser&rft.aufirst=Michael+E.&rft_id=https%3A%2F%2Fdoi.org%2F10.1351%252Fpac200678112051&rfr_id=info%3Asid%2Fen.wikipedia.org%3AIsotopes+of+krypton" class="Z3988"></span></li></ul></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://old.iupac.org/news/archives/2005/atomic-weights_revised05.html">"News & Notices: Standard Atomic Weights Revised"</a>. <i>International Union of Pure and Applied Chemistry</i>. 19 October 2005.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=International+Union+of+Pure+and+Applied+Chemistry&rft.atitle=News+%26+Notices%3A+Standard+Atomic+Weights+Revised&rft.date=2005-10-19&rft_id=http%3A%2F%2Fold.iupac.org%2Fnews%2Farchives%2F2005%2Fatomic-weights_revised05.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AIsotopes+of+krypton" class="Z3988"></span></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+krypton" 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+krypton" 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+krypton" class="Z3988"></span></li></ul></li></ul> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Isotopes_of_krypton&action=edit&section=10" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="http://www.nndc.bnl.gov/chart/reCenter.jsp?z=36&n=65">Brookhaven National Laboratory: Krypton-101 information</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20171018072258/http://www.nndc.bnl.gov/chart/reCenter.jsp?z=36&n=65">Archived</a> 2017-10-18 at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a></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 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.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 href="/wiki/Isotopes_of_cobalt" title="Isotopes of cobalt">Isotopes</a>  <a href="/wiki/Isotopes_of_cobalt#List_of_isotopes" title="Isotopes of cobalt">§ 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 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/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> 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