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<ul id="toc-Eksterne_lenker-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Innhold" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Vis/skjul innholdsfortegnelsen" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span 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Tilgjengelig på 111 språk" > <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-111" 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">111 språk</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Radioaktivitet" title="Radioaktivitet – norsk nynorsk" lang="nn" hreflang="nn" data-title="Radioaktivitet" data-language-autonym="Norsk nynorsk" data-language-local-name="norsk nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Radioaktivitet" title="Radioaktivitet – dansk" lang="da" hreflang="da" data-title="Radioaktivitet" data-language-autonym="Dansk" data-language-local-name="dansk" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Radioaktivitet" title="Radioaktivitet – svensk" lang="sv" hreflang="sv" data-title="Radioaktivitet" data-language-autonym="Svenska" data-language-local-name="svensk" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/Geislavirkni" title="Geislavirkni – islandsk" lang="is" hreflang="is" data-title="Geislavirkni" data-language-autonym="Íslenska" data-language-local-name="islandsk" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Radioaktiwiteit" title="Radioaktiwiteit – afrikaans" lang="af" hreflang="af" data-title="Radioaktiwiteit" data-language-autonym="Afrikaans" data-language-local-name="afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-als mw-list-item"><a href="https://als.wikipedia.org/wiki/Radioaktivit%C3%A4t" title="Radioaktivität – sveitsertysk" lang="gsw" hreflang="gsw" data-title="Radioaktivität" data-language-autonym="Alemannisch" data-language-local-name="sveitsertysk" class="interlanguage-link-target"><span>Alemannisch</span></a></li><li class="interlanguage-link interwiki-anp mw-list-item"><a href="https://anp.wikipedia.org/wiki/%E0%A4%B0%E0%A5%87%E0%A4%A1%E0%A4%BF%E0%A4%AF%E0%A5%8B%E0%A4%A7%E0%A4%B0%E0%A5%8D%E0%A4%AE%E0%A5%80_%E0%A4%95%E0%A5%8D%E0%A4%B7%E0%A4%AF" title="रेडियोधर्मी क्षय – angika" lang="anp" hreflang="anp" data-title="रेडियोधर्मी क्षय" data-language-autonym="अंगिका" data-language-local-name="angika" class="interlanguage-link-target"><span>अंगिका</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%A7%D8%B6%D9%85%D8%AD%D9%84%D8%A7%D9%84_%D9%86%D8%B4%D8%A7%D8%B7_%D8%A5%D8%B4%D8%B9%D8%A7%D8%B9%D9%8A" title="اضمحلال نشاط إشعاعي – arabisk" lang="ar" hreflang="ar" data-title="اضمحلال نشاط إشعاعي" data-language-autonym="العربية" data-language-local-name="arabisk" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-an mw-list-item"><a href="https://an.wikipedia.org/wiki/Radioactividat" title="Radioactividat – aragonsk" lang="an" hreflang="an" data-title="Radioactividat" data-language-autonym="Aragonés" data-language-local-name="aragonsk" class="interlanguage-link-target"><span>Aragonés</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Radioactivid%C3%A1" title="Radioactividá – asturisk" lang="ast" hreflang="ast" data-title="Radioactividá" data-language-autonym="Asturianu" data-language-local-name="asturisk" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Radioaktivlik" title="Radioaktivlik – aserbajdsjansk" lang="az" hreflang="az" data-title="Radioaktivlik" data-language-autonym="Azərbaycanca" data-language-local-name="aserbajdsjansk" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-azb mw-list-item"><a href="https://azb.wikipedia.org/wiki/%D8%B1%D8%A7%D8%AF%DB%8C%D9%88%D8%A2%DA%A9%D8%AA%DB%8C%D9%88%D9%84%DB%8C%DA%A9" title="رادیوآکتیولیک – søraserbajdsjansk" lang="azb" hreflang="azb" data-title="رادیوآکتیولیک" data-language-autonym="تۆرکجه" data-language-local-name="søraserbajdsjansk" class="interlanguage-link-target"><span>تۆرکجه</span></a></li><li class="interlanguage-link interwiki-ban mw-list-item"><a href="https://ban.wikipedia.org/wiki/Paluruhan_radioaktip" title="Paluruhan radioaktip – balinesisk" lang="ban" hreflang="ban" data-title="Paluruhan radioaktip" data-language-autonym="Basa Bali" data-language-local-name="balinesisk" class="interlanguage-link-target"><span>Basa Bali</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%A4%E0%A7%87%E0%A6%9C%E0%A6%B8%E0%A7%8D%E0%A6%95%E0%A7%8D%E0%A6%B0%E0%A6%BF%E0%A6%AF%E0%A6%BC%E0%A6%A4%E0%A6%BE" title="তেজস্ক্রিয়তা – bengali" lang="bn" hreflang="bn" data-title="তেজস্ক্রিয়তা" data-language-autonym="বাংলা" data-language-local-name="bengali" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-zh-min-nan mw-list-item"><a href="https://zh-min-nan.wikipedia.org/wiki/H%C3%B2ng-si%C4%81-s%C3%A8ng" title="Hòng-siā-sèng – minnan" lang="nan" hreflang="nan" data-title="Hòng-siā-sèng" data-language-autonym="閩南語 / Bân-lâm-gú" data-language-local-name="minnan" class="interlanguage-link-target"><span>閩南語 / Bân-lâm-gú</span></a></li><li class="interlanguage-link interwiki-ba mw-list-item"><a href="https://ba.wikipedia.org/wiki/%D0%A0%D0%B0%D0%B4%D0%B8%D0%BE%D0%B0%D0%BA%D1%82%D0%B8%D0%B2_%D1%82%D0%B0%D1%80%D2%A1%D0%B0%D0%BB%D1%8B%D1%83" title="Радиоактив тарҡалыу – basjkirsk" lang="ba" hreflang="ba" data-title="Радиоактив тарҡалыу" data-language-autonym="Башҡортса" data-language-local-name="basjkirsk" class="interlanguage-link-target"><span>Башҡортса</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%A0%D0%B0%D0%B4%D1%8B%D0%B5%D0%B0%D0%BA%D1%82%D1%8B%D1%9E%D0%BD%D1%8B_%D1%80%D0%B0%D1%81%D0%BF%D0%B0%D0%B4" title="Радыеактыўны распад – belarusisk" lang="be" hreflang="be" data-title="Радыеактыўны распад" data-language-autonym="Беларуская" data-language-local-name="belarusisk" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-be-x-old mw-list-item"><a href="https://be-tarask.wikipedia.org/wiki/%D0%A0%D0%B0%D0%B4%D1%8B%D1%8F%D0%B0%D0%BA%D1%82%D1%8B%D1%9E%D0%BD%D0%B0%D1%81%D1%8C%D1%86%D1%8C" title="Радыяактыўнасьць – belarusisk (klassisk ortografi)" lang="be-tarask" hreflang="be-tarask" data-title="Радыяактыўнасьць" data-language-autonym="Беларуская (тарашкевіца)" data-language-local-name="belarusisk (klassisk ortografi)" class="interlanguage-link-target"><span>Беларуская (тарашкевіца)</span></a></li><li class="interlanguage-link interwiki-bh mw-list-item"><a href="https://bh.wikipedia.org/wiki/%E0%A4%B0%E0%A5%87%E0%A4%A1%E0%A4%BF%E0%A4%AF%E0%A5%8B%E0%A4%8F%E0%A4%95%E0%A5%8D%E0%A4%9F%E0%A4%BF%E0%A4%B5_%E0%A4%95%E0%A5%8D%E0%A4%B7%E0%A4%AF" title="रेडियोएक्टिव क्षय – bihari" lang="bh" hreflang="bh" data-title="रेडियोएक्टिव क्षय" data-language-autonym="भोजपुरी" data-language-local-name="bihari" class="interlanguage-link-target"><span>भोजपुरी</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%A0%D0%B0%D0%B4%D0%B8%D0%BE%D0%B0%D0%BA%D1%82%D0%B8%D0%B2%D0%BD%D0%BE%D1%81%D1%82" title="Радиоактивност – bulgarsk" lang="bg" hreflang="bg" data-title="Радиоактивност" data-language-autonym="Български" data-language-local-name="bulgarsk" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bar mw-list-item"><a href="https://bar.wikipedia.org/wiki/Radioaktivit%C3%A4t" title="Radioaktivität – bairisk" lang="bar" hreflang="bar" data-title="Radioaktivität" data-language-autonym="Boarisch" data-language-local-name="bairisk" class="interlanguage-link-target"><span>Boarisch</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Radioaktivnost" title="Radioaktivnost – bosnisk" lang="bs" hreflang="bs" data-title="Radioaktivnost" data-language-autonym="Bosanski" data-language-local-name="bosnisk" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Radioactivitat" title="Radioactivitat – katalansk" lang="ca" hreflang="ca" data-title="Radioactivitat" data-language-autonym="Català" data-language-local-name="katalansk" 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%A0%D0%B0%D0%B4%D0%B8%D0%BE%D0%B0%D0%BA%D1%82%D0%B8%D0%B2%D0%BB%C4%83_%D0%B0%D1%80%D0%BA%D0%B0%D0%BD%D1%83" title="Радиоактивлă аркану – tsjuvasjisk" lang="cv" hreflang="cv" data-title="Радиоактивлă аркану" data-language-autonym="Чӑвашла" data-language-local-name="tsjuvasjisk" 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/Radioaktivita" title="Radioaktivita – tsjekkisk" lang="cs" hreflang="cs" data-title="Radioaktivita" data-language-autonym="Čeština" data-language-local-name="tsjekkisk" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-cy mw-list-item"><a href="https://cy.wikipedia.org/wiki/Dadfeilio_ymbelydrol" title="Dadfeilio ymbelydrol – walisisk" lang="cy" hreflang="cy" data-title="Dadfeilio ymbelydrol" data-language-autonym="Cymraeg" data-language-local-name="walisisk" class="interlanguage-link-target"><span>Cymraeg</span></a></li><li class="interlanguage-link interwiki-ary mw-list-item"><a href="https://ary.wikipedia.org/wiki/%D8%AA%D9%87%D8%B1%D8%A7%D8%B3_%D8%B1%D8%A7%D8%AF%D9%8A%D9%88%D8%A7%D9%83%D8%AA%D9%8A%DA%A4" title="تهراس راديواكتيڤ – marokkansk-arabisk" lang="ary" hreflang="ary" data-title="تهراس راديواكتيڤ" data-language-autonym="الدارجة" data-language-local-name="marokkansk-arabisk" class="interlanguage-link-target"><span>الدارجة</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Radioaktivit%C3%A4t" title="Radioaktivität – tysk" lang="de" hreflang="de" data-title="Radioaktivität" data-language-autonym="Deutsch" data-language-local-name="tysk" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Radioaktiivsus" title="Radioaktiivsus – estisk" lang="et" hreflang="et" data-title="Radioaktiivsus" data-language-autonym="Eesti" data-language-local-name="estisk" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%A1%CE%B1%CE%B4%CE%B9%CE%B5%CE%BD%CE%AD%CF%81%CE%B3%CE%B5%CE%B9%CE%B1" title="Ραδιενέργεια – gresk" lang="el" hreflang="el" data-title="Ραδιενέργεια" data-language-autonym="Ελληνικά" data-language-local-name="gresk" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Radioactive_decay" title="Radioactive decay – engelsk" lang="en" hreflang="en" data-title="Radioactive decay" data-language-autonym="English" data-language-local-name="engelsk" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Radiactividad" title="Radiactividad – spansk" lang="es" hreflang="es" data-title="Radiactividad" data-language-autonym="Español" data-language-local-name="spansk" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Radioaktiveco" title="Radioaktiveco – esperanto" lang="eo" hreflang="eo" data-title="Radioaktiveco" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-ext mw-list-item"><a href="https://ext.wikipedia.org/wiki/Radioativid%C3%A1" title="Radioatividá – ekstremaduransk" lang="ext" hreflang="ext" data-title="Radioatividá" data-language-autonym="Estremeñu" data-language-local-name="ekstremaduransk" class="interlanguage-link-target"><span>Estremeñu</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Desintegrazio_erradioaktibo" title="Desintegrazio erradioaktibo – baskisk" lang="eu" hreflang="eu" data-title="Desintegrazio erradioaktibo" data-language-autonym="Euskara" data-language-local-name="baskisk" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D9%88%D8%A7%D9%BE%D8%A7%D8%B4%DB%8C_%D9%BE%D8%B1%D8%AA%D9%88%D8%B2%D8%A7" title="واپاشی پرتوزا – persisk" lang="fa" hreflang="fa" data-title="واپاشی پرتوزا" data-language-autonym="فارسی" data-language-local-name="persisk" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-hif mw-list-item"><a href="https://hif.wikipedia.org/wiki/Radioactive_decay" title="Radioactive decay – fijiansk hindi" lang="hif" hreflang="hif" data-title="Radioactive decay" data-language-autonym="Fiji Hindi" data-language-local-name="fijiansk hindi" class="interlanguage-link-target"><span>Fiji Hindi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Radioactivit%C3%A9" title="Radioactivité – fransk" lang="fr" hreflang="fr" data-title="Radioactivité" data-language-autonym="Français" data-language-local-name="fransk" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-fy mw-list-item"><a href="https://fy.wikipedia.org/wiki/Radio-aktiviteit" title="Radio-aktiviteit – vestfrisisk" lang="fy" hreflang="fy" data-title="Radio-aktiviteit" data-language-autonym="Frysk" data-language-local-name="vestfrisisk" class="interlanguage-link-target"><span>Frysk</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Meath_radaighn%C3%ADomhach" title="Meath radaighníomhach – irsk" lang="ga" hreflang="ga" data-title="Meath radaighníomhach" data-language-autonym="Gaeilge" data-language-local-name="irsk" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Radioactividade" title="Radioactividade – galisisk" lang="gl" hreflang="gl" data-title="Radioactividade" data-language-autonym="Galego" data-language-local-name="galisisk" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EB%B0%A9%EC%82%AC%EC%84%B1_%EB%B6%95%EA%B4%B4" title="방사성 붕괴 – koreansk" lang="ko" hreflang="ko" data-title="방사성 붕괴" data-language-autonym="한국어" data-language-local-name="koreansk" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%8C%D5%A1%D5%A4%D5%AB%D5%B8%D5%A1%D5%AF%D5%BF%D5%AB%D5%BE%D5%B8%D6%82%D5%A9%D5%B5%D5%B8%D6%82%D5%B6" title="Ռադիոակտիվություն – armensk" lang="hy" hreflang="hy" data-title="Ռադիոակտիվություն" data-language-autonym="Հայերեն" data-language-local-name="armensk" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%B0%E0%A5%87%E0%A4%A1%E0%A4%BF%E0%A4%AF%E0%A5%8B%E0%A4%B8%E0%A4%95%E0%A5%8D%E0%A4%B0%E0%A4%BF%E0%A4%AF%E0%A4%A4%E0%A4%BE" title="रेडियोसक्रियता – hindi" lang="hi" hreflang="hi" data-title="रेडियोसक्रियता" data-language-autonym="हिन्दी" data-language-local-name="hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Radioaktivnost" title="Radioaktivnost – kroatisk" lang="hr" hreflang="hr" data-title="Radioaktivnost" data-language-autonym="Hrvatski" data-language-local-name="kroatisk" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-io mw-list-item"><a href="https://io.wikipedia.org/wiki/Radioaktiveso" title="Radioaktiveso – ido" lang="io" hreflang="io" data-title="Radioaktiveso" data-language-autonym="Ido" data-language-local-name="ido" class="interlanguage-link-target"><span>Ido</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Peluruhan_radioaktif" title="Peluruhan radioaktif – indonesisk" lang="id" hreflang="id" data-title="Peluruhan radioaktif" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesisk" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-ia mw-list-item"><a href="https://ia.wikipedia.org/wiki/Radioactivitate" title="Radioactivitate – interlingua" lang="ia" hreflang="ia" data-title="Radioactivitate" data-language-autonym="Interlingua" data-language-local-name="interlingua" class="interlanguage-link-target"><span>Interlingua</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Radioattivit%C3%A0" title="Radioattività – italiensk" lang="it" hreflang="it" data-title="Radioattività" data-language-autonym="Italiano" data-language-local-name="italiensk" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%A8%D7%93%D7%99%D7%95%D7%90%D7%A7%D7%98%D7%99%D7%91%D7%99%D7%95%D7%AA" title="רדיואקטיביות – hebraisk" lang="he" hreflang="he" data-title="רדיואקטיביות" data-language-autonym="עברית" data-language-local-name="hebraisk" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-kn mw-list-item"><a href="https://kn.wikipedia.org/wiki/%E0%B2%B5%E0%B2%BF%E0%B2%95%E0%B2%BF%E0%B2%B0%E0%B2%A3_%E0%B2%AA%E0%B2%9F%E0%B3%81%E0%B2%A4%E0%B3%8D%E0%B2%B5" title="ವಿಕಿರಣ ಪಟುತ್ವ – kannada" lang="kn" hreflang="kn" data-title="ವಿಕಿರಣ ಪಟುತ್ವ" data-language-autonym="ಕನ್ನಡ" data-language-local-name="kannada" class="interlanguage-link-target"><span>ಕನ್ನಡ</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%A0%E1%83%90%E1%83%93%E1%83%98%E1%83%9D%E1%83%90%E1%83%A5%E1%83%A2%E1%83%98%E1%83%A3%E1%83%A0%E1%83%98_%E1%83%93%E1%83%90%E1%83%A8%E1%83%9A%E1%83%90" title="რადიოაქტიური დაშლა – georgisk" lang="ka" hreflang="ka" data-title="რადიოაქტიური დაშლა" data-language-autonym="ქართული" data-language-local-name="georgisk" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-ks mw-list-item"><a href="https://ks.wikipedia.org/wiki/%D8%B1%DB%8C%DA%88%DB%8C%D9%88_%D8%A7%DB%8C%DA%A9%D9%B9%D9%90%D9%88%D9%90%D9%B9%DB%8C" title="ریڈیو ایکٹِوِٹی – kasjmiri" lang="ks" hreflang="ks" data-title="ریڈیو ایکٹِوِٹی" data-language-autonym="कॉशुर / کٲشُر" data-language-local-name="kasjmiri" class="interlanguage-link-target"><span>कॉशुर / کٲشُر</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%A2%D0%B0%D0%B1%D0%B8%D2%93%D0%B8_%D1%80%D0%B0%D0%B4%D0%B8%D0%BE%D0%B0%D0%BA%D1%82%D0%B8%D0%B2%D1%82%D1%96%D0%BA" title="Табиғи радиоактивтік – kasakhisk" lang="kk" hreflang="kk" data-title="Табиғи радиоактивтік" data-language-autonym="Қазақша" data-language-local-name="kasakhisk" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-sw mw-list-item"><a href="https://sw.wikipedia.org/wiki/Unururifu" title="Unururifu – swahili" lang="sw" hreflang="sw" data-title="Unururifu" data-language-autonym="Kiswahili" data-language-local-name="swahili" class="interlanguage-link-target"><span>Kiswahili</span></a></li><li class="interlanguage-link interwiki-ht mw-list-item"><a href="https://ht.wikipedia.org/wiki/Radyo-aktivite" title="Radyo-aktivite – haitisk" lang="ht" hreflang="ht" data-title="Radyo-aktivite" data-language-autonym="Kreyòl ayisyen" data-language-local-name="haitisk" class="interlanguage-link-target"><span>Kreyòl ayisyen</span></a></li><li class="interlanguage-link interwiki-ky mw-list-item"><a href="https://ky.wikipedia.org/wiki/%D0%A0%D0%B0%D0%B4%D0%B8%D0%BE%D0%B0%D0%BA%D1%82%D0%B8%D0%B2%D0%B4%D2%AF%D2%AF%D0%BB%D2%AF%D0%BA" title="Радиоактивдүүлүк – kirgisisk" lang="ky" hreflang="ky" data-title="Радиоактивдүүлүк" data-language-autonym="Кыргызча" data-language-local-name="kirgisisk" class="interlanguage-link-target"><span>Кыргызча</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/Radioactivitas" title="Radioactivitas – latin" lang="la" hreflang="la" data-title="Radioactivitas" data-language-autonym="Latina" data-language-local-name="latin" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Radioaktivit%C4%81te" title="Radioaktivitāte – latvisk" lang="lv" hreflang="lv" data-title="Radioaktivitāte" data-language-autonym="Latviešu" data-language-local-name="latvisk" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Radioaktyvumas" title="Radioaktyvumas – litauisk" lang="lt" hreflang="lt" data-title="Radioaktyvumas" data-language-autonym="Lietuvių" data-language-local-name="litauisk" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-li mw-list-item"><a href="https://li.wikipedia.org/wiki/Radioactiviteit" title="Radioactiviteit – limburgsk" lang="li" hreflang="li" data-title="Radioactiviteit" data-language-autonym="Limburgs" data-language-local-name="limburgsk" class="interlanguage-link-target"><span>Limburgs</span></a></li><li class="interlanguage-link interwiki-lmo mw-list-item"><a href="https://lmo.wikipedia.org/wiki/Radioativit%C3%A0" title="Radioatività – lombardisk" lang="lmo" hreflang="lmo" data-title="Radioatività" data-language-autonym="Lombard" data-language-local-name="lombardisk" class="interlanguage-link-target"><span>Lombard</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Radioaktivit%C3%A1s" title="Radioaktivitás – ungarsk" lang="hu" hreflang="hu" data-title="Radioaktivitás" data-language-autonym="Magyar" data-language-local-name="ungarsk" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%A0%D0%B0%D0%B4%D0%B8%D0%BE%D0%B0%D0%BA%D1%82%D0%B8%D0%B2%D0%BD%D0%BE%D1%81%D1%82" title="Радиоактивност – makedonsk" lang="mk" hreflang="mk" data-title="Радиоактивност" data-language-autonym="Македонски" data-language-local-name="makedonsk" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%86%E0%B4%A3%E0%B4%B5%E0%B4%BE%E0%B4%AA%E0%B4%9A%E0%B4%AF%E0%B4%82" title="ആണവാപചയം – malayalam" lang="ml" hreflang="ml" data-title="ആണവാപചയം" data-language-autonym="മലയാളം" data-language-local-name="malayalam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Reputan_radioaktif" title="Reputan radioaktif – malayisk" lang="ms" hreflang="ms" data-title="Reputan radioaktif" data-language-autonym="Bahasa Melayu" data-language-local-name="malayisk" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-mn mw-list-item"><a href="https://mn.wikipedia.org/wiki/%D0%A6%D0%B0%D1%86%D1%80%D0%B0%D0%B3_%D0%B8%D0%B4%D1%8D%D0%B2%D1%85%D1%82_%D0%B7%D0%B0%D0%B4%D1%80%D0%B0%D0%BB" title="Цацраг идэвхт задрал – mongolsk" lang="mn" hreflang="mn" data-title="Цацраг идэвхт задрал" data-language-autonym="Монгол" data-language-local-name="mongolsk" class="interlanguage-link-target"><span>Монгол</span></a></li><li class="interlanguage-link interwiki-my mw-list-item"><a href="https://my.wikipedia.org/wiki/%E1%80%9B%E1%80%B1%E1%80%92%E1%80%AE%E1%80%9A%E1%80%AD%E1%80%AF%E1%80%9E%E1%80%90%E1%80%B9%E1%80%90%E1%80%AD%E1%80%80%E1%80%BC%E1%80%BD%E1%80%95%E1%80%BC%E1%80%AD%E1%80%AF%E1%80%80%E1%80%BD%E1%80%B2%E1%80%99%E1%80%BE%E1%80%AF" title="ရေဒီယိုသတ္တိကြွပြိုကွဲမှု – burmesisk" lang="my" hreflang="my" data-title="ရေဒီယိုသတ္တိကြွပြိုကွဲမှု" data-language-autonym="မြန်မာဘာသာ" data-language-local-name="burmesisk" class="interlanguage-link-target"><span>မြန်မာဘာသာ</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Radioactiviteit" title="Radioactiviteit – nederlandsk" lang="nl" hreflang="nl" data-title="Radioactiviteit" data-language-autonym="Nederlands" data-language-local-name="nederlandsk" 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/%E6%94%BE%E5%B0%84%E8%83%BD" title="放射能 – japansk" lang="ja" hreflang="ja" data-title="放射能" data-language-autonym="日本語" data-language-local-name="japansk" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-frr mw-list-item"><a href="https://frr.wikipedia.org/wiki/Raadioaktiwiteet" title="Raadioaktiwiteet – nordfrisisk" lang="frr" hreflang="frr" data-title="Raadioaktiwiteet" data-language-autonym="Nordfriisk" data-language-local-name="nordfrisisk" class="interlanguage-link-target"><span>Nordfriisk</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Radioactivitat" title="Radioactivitat – oksitansk" lang="oc" hreflang="oc" data-title="Radioactivitat" data-language-autonym="Occitan" data-language-local-name="oksitansk" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-or mw-list-item"><a href="https://or.wikipedia.org/wiki/%E0%AC%A4%E0%AD%87%E0%AC%9C%E0%AC%B8%E0%AD%8D%E0%AC%95%E0%AD%8D%E0%AC%B0%E0%AC%BF%E0%AD%9F_%E0%AC%95%E0%AD%8D%E0%AC%B7%E0%AD%9F" title="ତେଜସ୍କ୍ରିୟ କ୍ଷୟ – odia" lang="or" hreflang="or" data-title="ତେଜସ୍କ୍ରିୟ କ୍ଷୟ" data-language-autonym="ଓଡ଼ିଆ" data-language-local-name="odia" class="interlanguage-link-target"><span>ଓଡ଼ିଆ</span></a></li><li class="interlanguage-link interwiki-om mw-list-item"><a href="https://om.wikipedia.org/wiki/Burkutaa%27inna_Xaanxawaa_(Radioactive_decay)" title="Burkutaa'inna Xaanxawaa (Radioactive decay) – oromo" lang="om" hreflang="om" data-title="Burkutaa'inna Xaanxawaa (Radioactive decay)" data-language-autonym="Oromoo" data-language-local-name="oromo" class="interlanguage-link-target"><span>Oromoo</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Radioaktiv_parchalanish" title="Radioaktiv parchalanish – usbekisk" lang="uz" hreflang="uz" data-title="Radioaktiv parchalanish" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="usbekisk" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-pa mw-list-item"><a href="https://pa.wikipedia.org/wiki/%E0%A8%B0%E0%A9%87%E0%A8%A1%E0%A9%80%E0%A8%93_%E0%A8%90%E0%A8%95%E0%A8%9F%E0%A8%BF%E0%A8%B5_%E0%A8%A1%E0%A8%BF%E0%A8%95%E0%A9%87" title="ਰੇਡੀਓ ਐਕਟਿਵ ਡਿਕੇ – panjabi" lang="pa" hreflang="pa" data-title="ਰੇਡੀਓ ਐਕਟਿਵ ਡਿਕੇ" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="panjabi" class="interlanguage-link-target"><span>ਪੰਜਾਬੀ</span></a></li><li class="interlanguage-link interwiki-pnb mw-list-item"><a href="https://pnb.wikipedia.org/wiki/%D8%AA%D8%A7%D8%A8%DA%A9%D8%A7%D8%B1%DB%8C" title="تابکاری – vestpunjabi" lang="pnb" hreflang="pnb" data-title="تابکاری" data-language-autonym="پنجابی" data-language-local-name="vestpunjabi" class="interlanguage-link-target"><span>پنجابی</span></a></li><li class="interlanguage-link interwiki-nds mw-list-item"><a href="https://nds.wikipedia.org/wiki/Radioaktivit%C3%A4t" title="Radioaktivität – nedertysk" lang="nds" hreflang="nds" data-title="Radioaktivität" data-language-autonym="Plattdüütsch" data-language-local-name="nedertysk" class="interlanguage-link-target"><span>Plattdüütsch</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Radioaktywno%C5%9B%C4%87" title="Radioaktywność – polsk" lang="pl" hreflang="pl" data-title="Radioaktywność" data-language-autonym="Polski" data-language-local-name="polsk" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Radioatividade" title="Radioatividade – portugisisk" lang="pt" hreflang="pt" data-title="Radioatividade" data-language-autonym="Português" data-language-local-name="portugisisk" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Radioactivitate" title="Radioactivitate – rumensk" lang="ro" hreflang="ro" data-title="Radioactivitate" data-language-autonym="Română" data-language-local-name="rumensk" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-rm mw-list-item"><a href="https://rm.wikipedia.org/wiki/Radioactivitad" title="Radioactivitad – retoromansk" lang="rm" hreflang="rm" data-title="Radioactivitad" data-language-autonym="Rumantsch" data-language-local-name="retoromansk" class="interlanguage-link-target"><span>Rumantsch</span></a></li><li class="interlanguage-link interwiki-qu mw-list-item"><a href="https://qu.wikipedia.org/wiki/Illanchaykuy" title="Illanchaykuy – quechua" lang="qu" hreflang="qu" data-title="Illanchaykuy" data-language-autonym="Runa Simi" data-language-local-name="quechua" class="interlanguage-link-target"><span>Runa Simi</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%A0%D0%B0%D0%B4%D0%B8%D0%BE%D0%B0%D0%BA%D1%82%D0%B8%D0%B2%D0%BD%D1%8B%D0%B9_%D1%80%D0%B0%D1%81%D0%BF%D0%B0%D0%B4" title="Радиоактивный распад – russisk" lang="ru" hreflang="ru" data-title="Радиоактивный распад" data-language-autonym="Русский" data-language-local-name="russisk" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sc mw-list-item"><a href="https://sc.wikipedia.org/wiki/Radioatividade" title="Radioatividade – sardisk" lang="sc" hreflang="sc" data-title="Radioatividade" data-language-autonym="Sardu" data-language-local-name="sardisk" class="interlanguage-link-target"><span>Sardu</span></a></li><li class="interlanguage-link interwiki-sco mw-list-item"><a href="https://sco.wikipedia.org/wiki/Radioactive_decay" title="Radioactive decay – skotsk" lang="sco" hreflang="sco" data-title="Radioactive decay" data-language-autonym="Scots" data-language-local-name="skotsk" class="interlanguage-link-target"><span>Scots</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/Radioaktiviteti" title="Radioaktiviteti – albansk" lang="sq" hreflang="sq" data-title="Radioaktiviteti" data-language-autonym="Shqip" data-language-local-name="albansk" class="interlanguage-link-target"><span>Shqip</span></a></li><li class="interlanguage-link interwiki-si mw-list-item"><a href="https://si.wikipedia.org/wiki/%E0%B7%80%E0%B7%92%E0%B6%9A%E0%B7%92%E0%B6%BB%E0%B6%AB%E0%B7%81%E0%B7%93%E0%B6%BD%E0%B7%93_%E0%B6%9A%E0%B7%8A%E0%B7%82%E0%B6%BA_%E0%B7%80%E0%B7%93%E0%B6%B8" title="විකිරණශීලී ක්ෂය වීම – singalesisk" lang="si" hreflang="si" data-title="විකිරණශීලී ක්ෂය වීම" data-language-autonym="සිංහල" data-language-local-name="singalesisk" class="interlanguage-link-target"><span>සිංහල</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/R%C3%A1dioakt%C3%ADvny_rozpad" title="Rádioaktívny rozpad – slovakisk" lang="sk" hreflang="sk" data-title="Rádioaktívny rozpad" data-language-autonym="Slovenčina" data-language-local-name="slovakisk" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Radioaktivnost" title="Radioaktivnost – slovensk" lang="sl" hreflang="sl" data-title="Radioaktivnost" data-language-autonym="Slovenščina" data-language-local-name="slovensk" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-ckb mw-list-item"><a href="https://ckb.wikipedia.org/wiki/%D8%AA%DB%8C%D8%B4%DA%A9%DB%95%DA%86%D8%A7%D9%84%D8%A7%DA%A9%DB%8C" title="تیشکەچالاکی – sentralkurdisk" lang="ckb" hreflang="ckb" data-title="تیشکەچالاکی" data-language-autonym="کوردی" data-language-local-name="sentralkurdisk" class="interlanguage-link-target"><span>کوردی</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%A0%D0%B0%D0%B4%D0%B8%D0%BE%D0%B0%D0%BA%D1%82%D0%B8%D0%B2%D0%BD%D0%BE%D1%81%D1%82" title="Радиоактивност – serbisk" lang="sr" hreflang="sr" data-title="Радиоактивност" data-language-autonym="Српски / srpski" data-language-local-name="serbisk" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Radioaktivnost" title="Radioaktivnost – serbokroatisk" lang="sh" hreflang="sh" data-title="Radioaktivnost" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="serbokroatisk" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Radioaktiivisuus" title="Radioaktiivisuus – finsk" lang="fi" hreflang="fi" data-title="Radioaktiivisuus" data-language-autonym="Suomi" data-language-local-name="finsk" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%95%E0%AE%A4%E0%AE%BF%E0%AE%B0%E0%AE%BF%E0%AE%AF%E0%AE%95%E0%AF%8D%E0%AE%95%E0%AE%AE%E0%AF%8D" title="கதிரியக்கம் – tamil" lang="ta" hreflang="ta" data-title="கதிரியக்கம்" data-language-autonym="தமிழ்" data-language-local-name="tamil" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-te mw-list-item"><a href="https://te.wikipedia.org/wiki/%E0%B0%B0%E0%B1%87%E0%B0%A1%E0%B0%BF%E0%B0%AF%E0%B1%8B_%E0%B0%A7%E0%B0%BE%E0%B0%B0%E0%B1%8D%E0%B0%AE%E0%B0%BF%E0%B0%95%E0%B0%A4" title="రేడియో ధార్మికత – telugu" lang="te" hreflang="te" data-title="రేడియో ధార్మికత" data-language-autonym="తెలుగు" data-language-local-name="telugu" class="interlanguage-link-target"><span>తెలుగు</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%81%E0%B8%B2%E0%B8%A3%E0%B8%AA%E0%B8%A5%E0%B8%B2%E0%B8%A2%E0%B8%95%E0%B8%B1%E0%B8%A7%E0%B8%81%E0%B8%B1%E0%B8%A1%E0%B8%A1%E0%B8%B1%E0%B8%99%E0%B8%95%E0%B8%A3%E0%B8%B1%E0%B8%87%E0%B8%AA%E0%B8%B5" title="การสลายตัวกัมมันตรังสี – thai" lang="th" hreflang="th" data-title="การสลายตัวกัมมันตรังสี" data-language-autonym="ไทย" data-language-local-name="thai" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Radyoaktivite" title="Radyoaktivite – tyrkisk" lang="tr" hreflang="tr" data-title="Radyoaktivite" data-language-autonym="Türkçe" data-language-local-name="tyrkisk" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%A0%D0%B0%D0%B4%D1%96%D0%BE%D0%B0%D0%BA%D1%82%D0%B8%D0%B2%D0%BD%D1%96%D1%81%D1%82%D1%8C" title="Радіоактивність – ukrainsk" lang="uk" hreflang="uk" data-title="Радіоактивність" data-language-autonym="Українська" data-language-local-name="ukrainsk" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-ur mw-list-item"><a href="https://ur.wikipedia.org/wiki/%D8%A7%D8%B4%D8%B9%D8%A7%D8%B9%DB%8C_%D8%AA%D9%86%D8%B2%D9%84" title="اشعاعی تنزل – urdu" lang="ur" hreflang="ur" data-title="اشعاعی تنزل" data-language-autonym="اردو" data-language-local-name="urdu" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-vep mw-list-item"><a href="https://vep.wikipedia.org/wiki/Radioaktivine_%C4%8Dihodamine" title="Radioaktivine čihodamine – vepsisk" lang="vep" hreflang="vep" data-title="Radioaktivine čihodamine" data-language-autonym="Vepsän kel’" data-language-local-name="vepsisk" class="interlanguage-link-target"><span>Vepsän kel’</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Ph%C3%B3ng_x%E1%BA%A1" title="Phóng xạ – vietnamesisk" lang="vi" hreflang="vi" data-title="Phóng xạ" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamesisk" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-wa mw-list-item"><a href="https://wa.wikipedia.org/wiki/Radiactivit%C3%A9" title="Radiactivité – vallonsk" lang="wa" hreflang="wa" data-title="Radiactivité" data-language-autonym="Walon" data-language-local-name="vallonsk" class="interlanguage-link-target"><span>Walon</span></a></li><li class="interlanguage-link interwiki-zh-classical mw-list-item"><a href="https://zh-classical.wikipedia.org/wiki/%E6%94%BE%E5%B0%84%E6%80%A7" title="放射性 – klassisk kinesisk" lang="lzh" hreflang="lzh" data-title="放射性" data-language-autonym="文言" data-language-local-name="klassisk kinesisk" class="interlanguage-link-target"><span>文言</span></a></li><li class="interlanguage-link interwiki-war mw-list-item"><a href="https://war.wikipedia.org/wiki/Dunot_radyoaktibo" title="Dunot radyoaktibo – waray-waray" lang="war" hreflang="war" data-title="Dunot radyoaktibo" data-language-autonym="Winaray" data-language-local-name="waray-waray" class="interlanguage-link-target"><span>Winaray</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E6%94%BE%E5%B0%84%E6%80%A7" title="放射性 – wu" lang="wuu" hreflang="wuu" data-title="放射性" data-language-autonym="吴语" data-language-local-name="wu" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-yi mw-list-item"><a href="https://yi.wikipedia.org/wiki/%D7%A8%D7%90%D7%93%D7%99%D7%90%D7%90%D7%A7%D7%98%D7%99%D7%95%D7%95%D7%99%D7%98%D7%A2%D7%98" title="ראדיאאקטיוויטעט – jiddisk" lang="yi" hreflang="yi" data-title="ראדיאאקטיוויטעט" data-language-autonym="ייִדיש" data-language-local-name="jiddisk" class="interlanguage-link-target"><span>ייִדיש</span></a></li><li class="interlanguage-link interwiki-yo mw-list-item"><a href="https://yo.wikipedia.org/wiki/%C3%8Ct%C3%BAk%C3%A1_on%C3%ADt%C3%ADt%C3%A0nyindin" title="Ìtúká onítítànyindin – joruba" lang="yo" hreflang="yo" data-title="Ìtúká onítítànyindin" data-language-autonym="Yorùbá" data-language-local-name="joruba" class="interlanguage-link-target"><span>Yorùbá</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E6%A0%B8%E8%A1%B0%E8%AE%8A" title="核衰變 – kantonesisk" lang="yue" hreflang="yue" data-title="核衰變" data-language-autonym="粵語" data-language-local-name="kantonesisk" class="interlanguage-link-target"><span>粵語</span></a></li><li class="interlanguage-link interwiki-bat-smg mw-list-item"><a href="https://bat-smg.wikipedia.org/wiki/Rad%C4%97j%C4%97akt%C4%ABvoms" title="Radėjėaktīvoms – samogitisk" lang="sgs" hreflang="sgs" data-title="Radėjėaktīvoms" data-language-autonym="Žemaitėška" data-language-local-name="samogitisk" class="interlanguage-link-target"><span>Žemaitėška</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E6%94%BE%E5%B0%84%E6%80%A7" title="放射性 – kinesisk" lang="zh" hreflang="zh" data-title="放射性" data-language-autonym="中文" data-language-local-name="kinesisk" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q11448#sitelinks-wikipedia" title="Rediger lenker til artikkelen på andre språk" class="wbc-editpage">Rediger lenker</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Navnerom"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Radioaktivitet" title="Vis innholdssiden [c]" accesskey="c"><span>Artikkel</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/Diskusjon:Radioaktivitet" rel="discussion" title="Diskusjon om innholdssiden [t]" accesskey="t"><span>Diskusjon</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Bytt språkvariant" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">norsk bokmål</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="Visninger"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Radioaktivitet"><span>Les</span></a></li><li id="ca-ve-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Radioaktivitet&veaction=edit" title="Rediger siden [v]" accesskey="v"><span>Rediger</span></a></li><li id="ca-edit" class="collapsible vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Radioaktivitet&action=edit" title="Rediger kildekoden for denne siden [e]" accesskey="e"><span>Rediger kilde</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Radioaktivitet&action=history" title="Tidligere sideversjoner av denne siden [h]" accesskey="h"><span>Vis historikk</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Sideverktøy"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Verktøy" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Verktøy</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Verktøy</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">flytt til sidefeltet</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">skjul</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="Flere alternativer" > <div class="vector-menu-heading"> Handlinger </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/Radioaktivitet"><span>Les</span></a></li><li id="ca-more-ve-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Radioaktivitet&veaction=edit" title="Rediger siden [v]" accesskey="v"><span>Rediger</span></a></li><li id="ca-more-edit" class="collapsible vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Radioaktivitet&action=edit" title="Rediger kildekoden for denne siden [e]" accesskey="e"><span>Rediger kilde</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Radioaktivitet&action=history"><span>Vis historikk</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> Generelt </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Spesial:Lenker_hit/Radioaktivitet" title="Liste over alle wikisider som lenker hit [j]" accesskey="j"><span>Lenker hit</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Spesial:Relaterte_endringer/Radioaktivitet" rel="nofollow" title="Siste endringer i sider som blir lenket fra denne siden [k]" accesskey="k"><span>Relaterte endringer</span></a></li><li id="t-upload" class="mw-list-item"><a href="//commons.wikimedia.org/wiki/Special:UploadWizard?uselang=no" title="Last opp filer [u]" accesskey="u"><span>Last opp fil</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Spesial:Spesialsider" title="Liste over alle spesialsider [q]" accesskey="q"><span>Spesialsider</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Radioaktivitet&oldid=24472391" title="Permanent lenke til denne versjonen av siden"><span>Permanent lenke</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Radioaktivitet&action=info" title="Mer informasjon om denne siden"><span>Sideinformasjon</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Spesial:Siteringshjelp&page=Radioaktivitet&id=24472391&wpFormIdentifier=titleform" title="Informasjon om hvordan denne siden kan siteres"><span>Siter denne siden</span></a></li><li id="t-urlshortener" class="mw-list-item"><a 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class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">Fra Wikipedia, den frie encyklopedi</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="nb" dir="ltr"><figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Fil:Radiation_warning_symbol.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/0b/Radiation_warning_symbol.svg/250px-Radiation_warning_symbol.svg.png" decoding="async" width="250" height="250" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/0b/Radiation_warning_symbol.svg/375px-Radiation_warning_symbol.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/0b/Radiation_warning_symbol.svg/500px-Radiation_warning_symbol.svg.png 2x" data-file-width="600" data-file-height="600" /></a><figcaption>Internasjonalt faresymbol for ioniserende stråling.</figcaption></figure> <p><b>Radioaktivitet</b> beskriver spontane omdanninger i <a href="/wiki/Atom" title="Atom">atomkjerner</a>. I slike omdanninger frigjøres energi som stråling. Radioaktivitet er en tilfeldig prosess. Hele <a href="/wiki/Atom" title="Atom">atomet</a> er med i prosessen fordi kjerneomdanningene også kan påvirke atomskallets struktur og føre til utsendelse av <a href="/wiki/Elektron" title="Elektron">elektroner</a>, <a href="/wiki/Foton" title="Foton">fotoner</a> eller begge deler. </p><p>Atomene er oppdelt i «nuklider». En <i><a href="/wiki/Nuklide" title="Nuklide">nuklide</a></i> er en gruppe av atomer som har et bestemt antall protoner og nøytroner i kjernen. Ustabile nuklider som omdannes til stabile eller ustabile datternuklider kalles <i><a href="/wiki/Radionuklide" title="Radionuklide">radionuklider</a></i>. Omdanningen resulterer i en annen nuklide eller i omdanning til en lavere energitilstand for samme nuklide. Det franske nasjonale måleinstituttet LNHB vedlikeholder opplysninger om alle radionuklider. </p><p>Størrelser som brukes til å beskrive radioaktivitet er <i>omdanningskonstanten</i>, <i>halveringstid</i>, <i>aktivitet</i> og <i>luftkerma-konstanten</i>. Aktivitet til de forskjellige radionuklidene måles blant annet med metoden trippel til dobbel koinsidensteller (TDCR). </p><p><i><b>Omdanningskonstanten</b></i>, λ, for en <a href="/wiki/Radionuklide" title="Radionuklide">radionuklide</a> i en bestemt energitilstand er forholdet mellom -d<i>N</i>/<i>N</i> og d<i>t</i>, der -d<i>N</i>/<i>N</i> er midlere endring av brøkdelen i antall nuklider i den bestemte energitilstanden på grunn av spontan kjerneomdanning i tidsintervallet d<i>t</i>; <i>λ</i>=-d<i>N</i>/<i>N</i>/(d<i>t</i>). Enheten for λ er s<sup>−1</sup>. </p><p><i><b><a href="/wiki/Halveringstid" title="Halveringstid">Halveringstiden</a></b></i> <i>T</i><sub>1/2</sub>= (ln 2)/<i>λ</i> er den midlere tiden det tar for radionuklider i en bestemt energitilstand å avta til halvparten av det opprinnelige antall. Ved tid <i>t </i>vil antall radionuklider være <i>N</i>=<i>N</i><sub>0</sub>e<sup>-<i>λt</i></sup>, der <i>N</i><sub>0</sub> er antall radionuklider ved <i>t</i>=0. </p><p><i><b>Aktiviteten</b></i>, <i>A</i>, til en mengde av en radionuklide i en bestemt energitilstand ved en bestemt tid er forholdet mellom -d<i>N</i> og d<i>t</i>, der d<i>N</i> er gjennomsnittlig endring i antallet nuklider i den bestemte energitilstanden på grunn av spontan kjerneomdanning i tidsintervallet d<i>t</i>; <i>A</i>=-d<i>N</i>/d<i>t</i>. Enheten for aktivitet er becquerel (Bq). <i>A</i> er også lik produktet av omdanningskonstanten, <i>λ</i>, og antall nuklider, <i>N</i>, for denne tilstanden; <i>A</i>= <i>λN</i>. </p><p><i><b>Luftkerma-konstanten</b></i>, <i>Γ</i><sub>δ</sub>, for en radionuklide som sender ut fotoner i luft er forholdet mellom og <i>A</i>, der er luftkermaraten fra fotoner med energi større enn <i>δ</i>, i avstand <i>l</i> i vakuum fra en punktkilde av denne nukliden med aktivitet <i>A</i>. Luftkerma-konstanten har enhet m<sup>2</sup>Jkg<sup>−1</sup>, men kan også uttrykkes ved Gy og Bq; m<sup>2</sup>GyBq<sup>−1</sup>s<sup>−1</sup>. Fotonene dannes ved gammastråling, karakteristisk røntgen eller intern bremsestråling. </p> <table class="wikitable"> <caption>Atomdata og luftkerma-konstanten for noen radionuklider, bare energier, <i>δ</i>>20 keV, er medregnet i <i>Γ</i><sub>20keV</sub>. </caption> <tbody><tr> <th>Radionuklide </th> <th>Halveringstid <i>T</i><sub>1/2</sub> </th> <th>Fotonenergi, <i>E </i>(MeV) </th> <th>Luftkerma-konstanten, <i>Γ</i><sub>20keV</sub> (μGym<sup>2</sup>GBq<sup>−1</sup>h<sup>−1</sup>) </th></tr> <tr> <td><sup>18</sup>F </td> <td>1,8288 t </td> <td>0,511 </td> <td>135,1 </td></tr> <tr> <td><sup>57</sup>Co </td> <td>271,80 d </td> <td>0,12206065 </td> <td>14,11 </td></tr> <tr> <td><sup>60</sup>Co </td> <td>5,2711 år </td> <td>1,173228 1,332492 </td> <td>309,0 </td></tr> <tr> <td><sup>67</sup>Ga </td> <td>3,2613 d </td> <td>0,093307 </td> <td>19,45 </td></tr> <tr> <td><sup>99m</sup>Tc </td> <td>6,0067 t </td> <td>0,140511 </td> <td>14,10 </td></tr> <tr> <td><sup>131</sup>I </td> <td>8,0233 d </td> <td>0,36449 </td> <td>52,20 </td></tr> <tr> <td><sup>137</sup>Cs </td> <td>30,05 år </td> <td>0,661659 </td> <td>82,10 </td></tr> <tr> <td><sup>192</sup>Ir </td> <td>73,827 d </td> <td>0,31650618 </td> <td>109,1 </td></tr> <tr> <td><sup>201</sup>Tl </td> <td>3,0421 d </td> <td>0,011785 0,07082 </td> <td>10,22 </td></tr> <tr> <td><sup>241</sup>Am </td> <td>432,6 år </td> <td>0,0595409 </td> <td>3,97 </td></tr></tbody></table><figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/Fil:Alfa_beta_gamma_radiation.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Alfa_beta_gamma_radiation.svg/250px-Alfa_beta_gamma_radiation.svg.png" decoding="async" width="250" height="333" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Alfa_beta_gamma_radiation.svg/375px-Alfa_beta_gamma_radiation.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Alfa_beta_gamma_radiation.svg/500px-Alfa_beta_gamma_radiation.svg.png 2x" data-file-width="600" data-file-height="800" /></a><figcaption>Alfastråling kan stoppes av et papirark, Betastråling kan stoppes av en aluminiumsplate og Gammastråling kan stoppes av 4m tykk vegg av massivt bly.</figcaption></figure> <p><b>Radioaktivitet</b> kalles det fenomenet at <a href="/wiki/Atomkjerne" title="Atomkjerne">atomkjerner</a> henfaller (omdannes) og sender ut ioniserende stråling i form av partikler og/eller <a href="/wiki/Elektromagnetisk_str%C3%A5ling" title="Elektromagnetisk stråling">elektromagnetisk stråling</a> under denne prosessen. </p><p>Ved radioaktiv omdanning sendes ioniserende stråling ut i form av <a href="/wiki/Alfastr%C3%A5ling" class="mw-redirect" title="Alfastråling">alfastråling</a>, <a href="/wiki/Betastr%C3%A5ling" class="mw-redirect" title="Betastråling">betastråling</a> eller <a href="/wiki/Elektromagnetisk_str%C3%A5ling" title="Elektromagnetisk stråling">elektromagnetisk stråling</a> som i denne sammenhengen ofte blir kalt <a href="/wiki/Gammastr%C3%A5ling" title="Gammastråling">gammastråling</a>. På grunn av stråle/partikkel-dualiteten kan man omtale stråling som spesifikke partikler. Strålingen oppstår ved at ustabile <a href="/wiki/Atomkjerne" title="Atomkjerne">atomkjerner</a> spaltes til andre <a href="/wiki/Grunnstoff" title="Grunnstoff">grunnstoffer</a> og avgir overflødig <a href="/wiki/Energi" title="Energi">energi</a> i utsendte partikler. </p> <ul><li><i>Alfastråling</i> består av <a href="/wiki/Helium" title="Helium">heliumkjerner</a> (<sup>4</sup>He<sup>2+</sup> med to <a href="/wiki/Proton" title="Proton">protoner</a> og to <a href="/wiki/N%C3%B8ytron" title="Nøytron">nøytroner</a>) i høy hastighet. Rekkevidden av alfastråling i luft er 2 – 10 <a href="/wiki/Centimeter" title="Centimeter">centimeter</a>, i vann og biologisk vev noen hundredels <a href="/wiki/Millimeter" title="Millimeter">millimeter</a>, og stanses av papir, men har høy <a href="/wiki/Energi" title="Energi">energi</a> og kan være svært ødeleggende hvis de radioaktive <a href="/wiki/Atom" title="Atom">atomene</a> befinner seg inni kroppen.</li> <li><i>Betastråling</i> består av <a href="/wiki/Elektron" title="Elektron">elektroner</a> (e<sup>-</sup> eller β<sup>-</sup>) eller <a href="/wiki/Positron" title="Positron">positroner</a> (e<sup>+</sup> eller β<sup>+</sup>) i høy hastighet. Rekkevidden i vann og vev er typisk ½ cm, men energien er lavere enn i alfa- eller gammastråling. Siden positronet er elektronets <a href="/wiki/Antipartikkel" title="Antipartikkel">antipartikkel</a>, vil et positron i den virkelige verden alltid kollidere med et elektron og de to forsvinner, og de sender ut to identiske <a href="/wiki/Foton" title="Foton">fotoner</a> i hver sin retning.</li> <li><i>Gammastråling</i> er høyenergisk <a href="/wiki/Elektromagnetisk_str%C3%A5ling" title="Elektromagnetisk stråling">elektromagnetisk stråling</a>, <a href="/wiki/Foton" title="Foton">fotoner</a> (γ), som dannes ved endringer i atomkjerners energinivåer. Gammastråling kan ha høyere energi enn <a href="/wiki/R%C3%B8ntgenstr%C3%A5ling" title="Røntgenstråling">røntgenstråling</a>, som dannes ved endringer i elektroners energinivåer. Gammastrålingen er den mest gjennomtrengende av de vanlige stråletypene, ca. ½ m i vann og vev, men har lavere energi pr. partikkel enn de øvrige. Med partikkel menes i denne sammenheng <a href="/wiki/Foton" title="Foton">foton</a>.</li></ul> <p><a href="/wiki/SI-systemet" title="SI-systemet">SI-enheten</a> for aktivitet er <a href="/wiki/Becquerel" title="Becquerel">becquerel</a> (Bq), der 1 Bq tilsvarer et henfall pr. <a href="/wiki/Sekund" title="Sekund">sekund</a>. Aktivitet kan bli oppgitt i kilobecquerel (1 kBq = 1000 Bq) eller megabecquerel (1 MBq = 1 000 000 Bq). En eldre og nå forlatt måleenhet er <a href="/wiki/Curie" class="mw-disambig" title="Curie">curie</a> (Ci), der 1 Ci = 3,7×10<sup>10</sup> Bq, eller 1 Ci = 37 GBq. </p><p>Som skjerming rundt kraftige strålingskilder brukes <a href="/wiki/Bly" title="Bly">bly</a>, <a href="/wiki/St%C3%A5l" title="Stål">stål</a> eller andre tunge materialer. Tidligere kunne også <a href="/wiki/Utarmet_uran" title="Utarmet uran">utarmet uran</a> bli brukt i spesielle tilfeller. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Konserveringslover[1]"><span id="Konserveringslover.5B1.5D"></span>Konserveringslover<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Radioaktivitet&veaction=edit&section=1" title="Rediger avsnitt: Konserveringslover[1]" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Radioaktivitet&action=edit&section=1" title="Rediger kildekoden til seksjonen Konserveringslover[1]"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>I radioaktivt henfal, i likhet med andre nukleære reaksjoner må visse konserveringslover bli oppfylt. For en generell reaksjon: </p><p><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\ce {X_1 {+}X_2->X_3 {+}X_4}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <msubsup> <mtext>X</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>1</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em" /> </mrow> </msubsup> <mrow class="MJX-TeXAtom-ORD"> <mo>+</mo> </mrow> <msubsup> <mtext>X</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em" /> </mrow> </msubsup> <mo stretchy="false">⟶</mo> <msubsup> <mtext>X</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>3</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em" /> </mrow> </msubsup> <mrow class="MJX-TeXAtom-ORD"> <mo>+</mo> </mrow> <msubsup> <mtext>X</mtext> <mrow class="MJX-TeXAtom-ORD"> <mn>4</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mspace width="0pt" height="0pt" depth=".2em" /> </mrow> </msubsup> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\ce {X_1 {+}X_2->X_3 {+}X_4}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/36aaf309822694110d6447164b406b45244fb2b9" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:19.902ex; height:2.843ex;" alt="{\displaystyle {\ce {X_1 {+}X_2->X_3 {+}X_4}}}"></span> </p><p>Må følgende konserveringslover bli oppfylt: </p><p>a) Den totale energien i systemet må bli bevart: </p><p><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle E_{1}{+}E_{2}=E_{3}{+}E_{4}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>E</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>1</mn> </mrow> </msub> <mrow class="MJX-TeXAtom-ORD"> <mo>+</mo> </mrow> <msub> <mi>E</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msub> <mo>=</mo> <msub> <mi>E</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>3</mn> </mrow> </msub> <mrow class="MJX-TeXAtom-ORD"> <mo>+</mo> </mrow> <msub> <mi>E</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>4</mn> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle E_{1}{+}E_{2}=E_{3}{+}E_{4}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/58792a1204e583600709e8a9cbf53688c938ab6b" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:17.793ex; height:2.509ex;" alt="{\displaystyle E_{1}{+}E_{2}=E_{3}{+}E_{4}}"></span> </p><p>hvor E inkluderer alle former for energi: masse energi, kinetisk energi, elektrostatisk energi, etc. </p><p>b) Det lineære momentet må bli bevart: </p><p><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle p=m\nu }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>p</mi> <mo>=</mo> <mi>m</mi> <mi>ν</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle p=m\nu }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/205a1acc2162277215cc284c021d0a7cb36d1f00" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; margin-left: -0.089ex; width:7.63ex; height:2.009ex;" alt="{\displaystyle p=m\nu }"></span> </p><p>dermed vil dette gi oss </p><p><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle p_{1}{+}p_{2}=p_{3}{+}p_{4}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>p</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>1</mn> </mrow> </msub> <mrow class="MJX-TeXAtom-ORD"> <mo>+</mo> </mrow> <msub> <mi>p</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msub> <mo>=</mo> <msub> <mi>p</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>3</mn> </mrow> </msub> <mrow class="MJX-TeXAtom-ORD"> <mo>+</mo> </mrow> <msub> <mi>p</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>4</mn> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle p_{1}{+}p_{2}=p_{3}{+}p_{4}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/c9a721af659c086ffcc11710060214311e3b12de" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; margin-left: -0.089ex; width:15.699ex; height:2.343ex;" alt="{\displaystyle p_{1}{+}p_{2}=p_{3}{+}p_{4}}"></span> </p><p>Relasjonen mellom kinetisk energi (<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle E_{kin}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>E</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>k</mi> <mi>i</mi> <mi>n</mi> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle E_{kin}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/cd9ac2f7a5a0677c30332ea5909c7c9889cae11b" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:4.358ex; height:2.509ex;" alt="{\displaystyle E_{kin}}"></span>) og det lineære momentet blir: </p><p><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle E_{kin}={p^{2} \over 2m}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>E</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>k</mi> <mi>i</mi> <mi>n</mi> </mrow> </msub> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <msup> <mi>p</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> <mrow> <mn>2</mn> <mi>m</mi> </mrow> </mfrac> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle E_{kin}={p^{2} \over 2m}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/6c3ee48bec37687bf4480d993de95c8acb5d2f5e" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.838ex; width:11.495ex; height:5.676ex;" alt="{\displaystyle E_{kin}={p^{2} \over 2m}}"></span> </p><p>c) Den totale ladningen (protoner og elektroner) til systemet må bli bevart: </p><p><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle Z_{1}+Z_{2}=Z_{3}+Z_{4}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>Z</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>1</mn> </mrow> </msub> <mo>+</mo> <msub> <mi>Z</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msub> <mo>=</mo> <msub> <mi>Z</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>3</mn> </mrow> </msub> <mo>+</mo> <msub> <mi>Z</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>4</mn> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle Z_{1}+Z_{2}=Z_{3}+Z_{4}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/04881fe5c2cc0249c765983a52becdfbca322662" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:19.346ex; height:2.509ex;" alt="{\displaystyle Z_{1}+Z_{2}=Z_{3}+Z_{4}}"></span> </p><p>her er ladning i elektron enheter </p><p>d) Massetallet (antallet nukleoner) må bli bevart: </p><p><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle A_{1}+A_{2}=A_{3}+A_{4}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>A</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>1</mn> </mrow> </msub> <mo>+</mo> <msub> <mi>A</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msub> <mo>=</mo> <msub> <mi>A</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>3</mn> </mrow> </msub> <mo>+</mo> <msub> <mi>A</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>4</mn> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle A_{1}+A_{2}=A_{3}+A_{4}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/51f8f68c5ad11479a9d35739d387b227392d1eb5" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:19.969ex; height:2.509ex;" alt="{\displaystyle A_{1}+A_{2}=A_{3}+A_{4}}"></span> </p><p>e) Det totale angulære momentet (<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle p_{I}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>p</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>I</mi> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle p_{I}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/7f495138a82da7184af3f0b379ff2e90711831d0" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; margin-left: -0.089ex; width:2.32ex; height:2.009ex;" alt="{\displaystyle p_{I}}"></span>) må bli bevart: </p><p><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle (p_{I})_{1}+(p_{I})_{2}=(p_{I})_{3}+(p_{I})_{4}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mo stretchy="false">(</mo> <msub> <mi>p</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>I</mi> </mrow> </msub> <msub> <mo stretchy="false">)</mo> <mrow class="MJX-TeXAtom-ORD"> <mn>1</mn> </mrow> </msub> <mo>+</mo> <mo stretchy="false">(</mo> <msub> <mi>p</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>I</mi> </mrow> </msub> <msub> <mo stretchy="false">)</mo> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msub> <mo>=</mo> <mo stretchy="false">(</mo> <msub> <mi>p</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>I</mi> </mrow> </msub> <msub> <mo stretchy="false">)</mo> <mrow class="MJX-TeXAtom-ORD"> <mn>3</mn> </mrow> </msub> <mo>+</mo> <mo stretchy="false">(</mo> <msub> <mi>p</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>I</mi> </mrow> </msub> <msub> <mo stretchy="false">)</mo> <mrow class="MJX-TeXAtom-ORD"> <mn>4</mn> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle (p_{I})_{1}+(p_{I})_{2}=(p_{I})_{3}+(p_{I})_{4}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/d61fba75fb41e9077c0585ec4d1fc00bfc703023" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:29.154ex; height:2.843ex;" alt="{\displaystyle (p_{I})_{1}+(p_{I})_{2}=(p_{I})_{3}+(p_{I})_{4}}"></span> </p><p>Siden det eksisterer to typer angulært moment, et på grunn av orbitalbevegelse av de individuelle nukleonene, og det andre på grunn av internt spinn av nukleoner (internt angulært moment), kan det også skrives som: </p><p><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \Delta I=I_{3}+I_{4}-I_{1}-I_{2}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi mathvariant="normal">Δ</mi> <mi>I</mi> <mo>=</mo> <msub> <mi>I</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>3</mn> </mrow> </msub> <mo>+</mo> <msub> <mi>I</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>4</mn> </mrow> </msub> <mo>−</mo> <msub> <mi>I</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>1</mn> </mrow> </msub> <mo>−</mo> <msub> <mi>I</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \Delta I=I_{3}+I_{4}-I_{1}-I_{2}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/3b35b6b6abe945396c5e0d878fbc0b5dbf2d8050" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:23.037ex; height:2.509ex;" alt="{\displaystyle \Delta I=I_{3}+I_{4}-I_{1}-I_{2}}"></span> </p> <div class="mw-heading mw-heading2"><h2 id="Referanser">Referanser</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Radioaktivitet&veaction=edit&section=2" title="Rediger avsnitt: Referanser" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Radioaktivitet&action=edit&section=2" title="Rediger kildekoden til seksjonen Referanser"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><b><a href="#cite_ref-1">^</a></b> <span class="reference-text"><cite class="citation book">R.,, Choppin, Gregory. «Unstable Nuclei and Radioactive Decay». <a rel="nofollow" class="external text" href="https://www.worldcat.org/oclc/859381735"><i>Radiochemistry and nuclear chemistry</i></a> (Fourth edition utg.). Oxford. s. 87–88. <a href="/wiki/ISBN" title="ISBN">ISBN</a> <a href="/wiki/Spesial:Bokkilder/9780123978684" title="Spesial:Bokkilder/9780123978684">9780123978684</a>. <a href="/wiki/OCLC" class="mw-redirect" title="OCLC">OCLC</a> <a rel="nofollow" class="external text" href="//www.worldcat.org/oclc/859381735">859381735</a>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fno.wikipedia.org%3ARadioaktivitet&rft.atitle=Unstable+Nuclei+and+Radioactive+Decay&rft.aufirst=Choppin%2C+Gregory&rft.aulast=R.%2C&rft.btitle=Radiochemistry+and+nuclear+chemistry&rft.edition=Fourth+edition&rft.genre=bookitem&rft.isbn=9780123978684&rft.pages=87-88&rft.place=Oxford&rft_id=https%3A%2F%2Fwww.worldcat.org%2Foclc%2F859381735&rft_id=info%3Aoclcnum%2F859381735&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;"> </span></span><span class="citation-comment" style="display:none; color:#33aa33; margin-left:0.3em">CS1-vedlikehold: Ekstra tekst (<a href="/wiki/Kategori:CS1-vedlikehold:_Ekstra_tekst" title="Kategori:CS1-vedlikehold: Ekstra tekst">link</a>)</span></span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="Se_også"><span id="Se_ogs.C3.A5"></span>Se også</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Radioaktivitet&veaction=edit&section=3" title="Rediger avsnitt: Se også" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Radioaktivitet&action=edit&section=3" title="Rediger kildekoden til seksjonen Se også"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Grunnstoffliste" class="mw-redirect" title="Grunnstoffliste">Grunnstoffliste</a></li> <li><a href="/wiki/Isotop" title="Isotop">Isotop</a></li> <li><a href="/wiki/Isotoptabell" title="Isotoptabell">Isotoptabell</a></li> <li><a href="/wiki/Karbondatering" title="Karbondatering">Karbondatering</a></li> <li><a href="/wiki/Kjernekraft" class="mw-redirect" title="Kjernekraft">Kjernekraft</a></li> <li><a href="/wiki/Positron_Emisjon_Tomografi" class="mw-redirect" title="Positron Emisjon Tomografi">PET</a></li> <li><a href="/wiki/R%C3%B8ykvarsler" title="Røykvarsler">Røykvarsler</a></li> <li><a href="/wiki/SPECT" title="SPECT">SPECT</a></li> <li><a href="/wiki/Tsjernobylulykken" class="mw-redirect" title="Tsjernobylulykken">Tsjernobylulykken</a></li> <li><a href="/wiki/Kartlegging_av_radioaktivitet" title="Kartlegging av radioaktivitet">Kartlegging av radioaktivitet</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Eksterne_lenker">Eksterne lenker</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Radioaktivitet&veaction=edit&section=4" title="Rediger avsnitt: Eksterne lenker" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Radioaktivitet&action=edit&section=4" title="Rediger kildekoden til seksjonen Eksterne lenker"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="http://www.bipm.org/en/publications/si-brochure/">Det internasjonale kontoret for vekt og mål (BIPM)</a></li> <li><a rel="nofollow" class="external text" href="https://miljostatus.miljodirektoratet.no/tema/straling/radioaktiv-forurensning/">Miljøstatus i Norge: Radioaktiv forurensning</a></li> <li><a rel="nofollow" class="external text" href="https://miljostatus.miljodirektoratet.no/tema/straling/">Miljøstatus i Norge: Stråling</a></li> <li><a rel="nofollow" class="external text" href="http://forskning.no/menneskekroppen-fysikk-kjernefysikk-radioaktivitet/2011/03/livgiver-og-dodbringer">Radioaktiv stråling - Livgiver og dødbringer</a> - artikkel fra forskning.no 22.3.11</li> <li><a rel="nofollow" class="external text" href="http://www.nucleide.org/DDEP_WG/DDEPdata.htm">Fakta om alle radionukider hos LNHB.</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20210213021408/http://www.nucleide.org/DDEP_WG/DDEPdata.htm">Arkivert</a> 13. februar 2021 hos <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a>.</li> <li><a rel="nofollow" class="external text" href="http://www.nucleide.org/ICRM_LSC_WG/icrmtdcr.htm">Måling av aktivitet foregår med metoden trippel til dobbel koinsidensteller (TDCR)</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20160714092830/http://www.nucleide.org/ICRM_LSC_WG/icrmtdcr.htm">Arkivert</a> 14. juli 2016 hos <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a>.</li></ul> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r23230704">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist 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