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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="Cambiar a la tabla de contenidos" > <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 class="vector-dropdown-label-text">Cambiar a la tabla de contenidos</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Desintegración alfa</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Ir a un artículo en otro idioma. Disponible en 59 idiomas" > <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-59" 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">59 llingües</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Alfaverval" title="Alfaverval – afrikaans" lang="af" hreflang="af" data-title="Alfaverval" data-language-autonym="Afrikaans" data-language-local-name="afrikaans" class="interlanguage-link-target"><span>Afrikaans</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_%D8%A3%D9%84%D9%81%D8%A7" title="اضمحلال ألفا – árabe" lang="ar" hreflang="ar" data-title="اضمحلال ألفا" data-language-autonym="العربية" data-language-local-name="árabe" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Alfa_da%C4%9F%C4%B1lmas%C4%B1" title="Alfa dağılması – azerbaixanu" lang="az" hreflang="az" data-title="Alfa dağılması" data-language-autonym="Azərbaycanca" data-language-local-name="azerbaixanu" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%90%D0%BB%D1%8C%D1%84%D0%B0-%D1%80%D0%B0%D1%81%D0%BF%D0%B0%D0%B4" title="Альфа-распад – bielorrusu" lang="be" hreflang="be" data-title="Альфа-распад" data-language-autonym="Беларуская" data-language-local-name="bielorrusu" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%90%D0%BB%D1%84%D0%B0-%D1%80%D0%B0%D0%B7%D0%BF%D0%B0%D0%B4" title="Алфа-разпад – búlgaru" lang="bg" hreflang="bg" data-title="Алфа-разпад" data-language-autonym="Български" data-language-local-name="búlgaru" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%86%E0%A6%B2%E0%A6%AB%E0%A6%BE_%E0%A6%95%E0%A7%8D%E0%A6%B7%E0%A6%AF%E0%A6%BC" title="আলফা ক্ষয় – bengalín" lang="bn" hreflang="bn" data-title="আলফা ক্ষয়" data-language-autonym="বাংলা" data-language-local-name="bengalín" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Desintegraci%C3%B3_%CE%B1" title="Desintegració α – catalán" lang="ca" hreflang="ca" data-title="Desintegració α" data-language-autonym="Català" data-language-local-name="catalán" 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%90%D0%BB%D1%8C%D1%84%D0%B0-%D1%81%D0%B0%D0%BB%D0%B0%D0%BD%D1%83" title="Альфа-салану – chuvash" lang="cv" hreflang="cv" data-title="Альфа-салану" data-language-autonym="Чӑвашла" data-language-local-name="chuvash" class="interlanguage-link-target"><span>Чӑвашла</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Alfahenfald" title="Alfahenfald – danés" lang="da" hreflang="da" data-title="Alfahenfald" data-language-autonym="Dansk" data-language-local-name="danés" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de badge-Q70894304 mw-list-item" title=""><a href="https://de.wikipedia.org/wiki/Alphazerfall" title="Alphazerfall – alemán" lang="de" hreflang="de" data-title="Alphazerfall" data-language-autonym="Deutsch" data-language-local-name="alemán" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%94%CE%B9%CE%AC%CF%83%CF%80%CE%B1%CF%83%CE%B7_%CE%AC%CE%BB%CF%86%CE%B1" title="Διάσπαση άλφα – griegu" lang="el" hreflang="el" data-title="Διάσπαση άλφα" data-language-autonym="Ελληνικά" data-language-local-name="griegu" 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/Alpha_decay" title="Alpha decay – inglés" lang="en" hreflang="en" data-title="Alpha decay" data-language-autonym="English" data-language-local-name="inglés" 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/Desintegraci%C3%B3n_alfa" title="Desintegración alfa – español" lang="es" hreflang="es" data-title="Desintegración alfa" data-language-autonym="Español" data-language-local-name="español" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Alfalagunemine" title="Alfalagunemine – estoniu" lang="et" hreflang="et" data-title="Alfalagunemine" data-language-autonym="Eesti" data-language-local-name="estoniu" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Alfa_desintegrazio" title="Alfa desintegrazio – vascu" lang="eu" hreflang="eu" data-title="Alfa desintegrazio" data-language-autonym="Euskara" data-language-local-name="vascu" 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_%D8%A2%D9%84%D9%81%D8%A7" title="واپاشی آلفا – persa" lang="fa" hreflang="fa" data-title="واپاشی آلفا" data-language-autonym="فارسی" data-language-local-name="persa" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Alfahajoaminen" title="Alfahajoaminen – finlandés" lang="fi" hreflang="fi" data-title="Alfahajoaminen" data-language-autonym="Suomi" data-language-local-name="finlandés" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Radioactivit%C3%A9_%CE%B1" title="Radioactivité α – francés" lang="fr" hreflang="fr" data-title="Radioactivité α" data-language-autonym="Français" data-language-local-name="francés" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Alfa-mheath" title="Alfa-mheath – irlandés" lang="ga" hreflang="ga" data-title="Alfa-mheath" data-language-autonym="Gaeilge" data-language-local-name="irlandés" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%A7%D7%A8%D7%99%D7%A0%D7%AA_%D7%90%D7%9C%D7%A4%D7%90" title="קרינת אלפא – hebréu" lang="he" hreflang="he" data-title="קרינת אלפא" data-language-autonym="עברית" data-language-local-name="hebréu" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%85%E0%A4%B2%E0%A5%8D%E0%A4%AB%E0%A4%BE_%E0%A4%95%E0%A5%8D%E0%A4%B7%E0%A4%AF" title="अल्फा क्षय – hindi" lang="hi" hreflang="hi" data-title="अल्फा क्षय" data-language-autonym="हिन्दी" data-language-local-name="hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr badge-Q17437796 badge-featuredarticle mw-list-item" title="artículos destacaos"><a href="https://hr.wikipedia.org/wiki/Alfa_raspad" title="Alfa raspad – croata" lang="hr" hreflang="hr" data-title="Alfa raspad" data-language-autonym="Hrvatski" data-language-local-name="croata" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Alfa-r%C3%A9szecske" title="Alfa-részecske – húngaru" lang="hu" hreflang="hu" data-title="Alfa-részecske" data-language-autonym="Magyar" data-language-local-name="húngaru" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D4%B1%D5%AC%D6%86%D5%A1-%D5%BF%D6%80%D5%B8%D5%B0%D5%B8%D6%82%D5%B4" title="Ալֆա-տրոհում – armeniu" lang="hy" hreflang="hy" data-title="Ալֆա-տրոհում" data-language-autonym="Հայերեն" data-language-local-name="armeniu" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Peluruhan_alfa" title="Peluruhan alfa – indonesiu" lang="id" hreflang="id" data-title="Peluruhan alfa" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesiu" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/Alfasundrun" title="Alfasundrun – islandés" lang="is" hreflang="is" data-title="Alfasundrun" data-language-autonym="Íslenska" data-language-local-name="islandés" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Decadimento_alfa" title="Decadimento alfa – italianu" lang="it" hreflang="it" data-title="Decadimento alfa" data-language-autonym="Italiano" data-language-local-name="italianu" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E3%82%A2%E3%83%AB%E3%83%95%E3%82%A1%E5%B4%A9%E5%A3%8A" title="アルファ崩壊 – xaponés" lang="ja" hreflang="ja" data-title="アルファ崩壊" data-language-autonym="日本語" data-language-local-name="xaponés" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%90%E1%83%9A%E1%83%A4%E1%83%90-%E1%83%93%E1%83%90%E1%83%A8%E1%83%9A%E1%83%90" title="ალფა-დაშლა – xeorxanu" lang="ka" hreflang="ka" data-title="ალფა-დაშლა" data-language-autonym="ქართული" data-language-local-name="xeorxanu" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%90%D0%BB%D1%8C%D1%84%D0%B0-%D1%8B%D0%B4%D1%8B%D1%80%D0%B0%D1%83" title="Альфа-ыдырау – kazaquistanín" lang="kk" hreflang="kk" data-title="Альфа-ыдырау" data-language-autonym="Қазақша" data-language-local-name="kazaquistanín" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%95%8C%ED%8C%8C_%EB%B6%95%EA%B4%B4" title="알파 붕괴 – coreanu" lang="ko" hreflang="ko" data-title="알파 붕괴" data-language-autonym="한국어" data-language-local-name="coreanu" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Alfa_skilimas" title="Alfa skilimas – lituanu" lang="lt" hreflang="lt" data-title="Alfa skilimas" data-language-autonym="Lietuvių" data-language-local-name="lituanu" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Alfa_sabruk%C5%A1ana" title="Alfa sabrukšana – letón" lang="lv" hreflang="lv" data-title="Alfa sabrukšana" data-language-autonym="Latviešu" data-language-local-name="letón" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%90%D0%BB%D1%84%D0%B0-%D1%80%D0%B0%D1%81%D0%BF%D0%B0%D0%B4" title="Алфа-распад – macedoniu" lang="mk" hreflang="mk" data-title="Алфа-распад" data-language-autonym="Македонски" data-language-local-name="macedoniu" 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%B5%BD%E0%B4%AB%E0%B4%BE_%E0%B4%B6%E0%B5%8B%E0%B4%B7%E0%B4%A3%E0%B4%82" title="ആൽഫാ ശോഷണം – malayalam" lang="ml" hreflang="ml" data-title="ആൽഫാ ശോഷണം" data-language-autonym="മലയാളം" data-language-local-name="malayalam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-mn mw-list-item"><a href="https://mn.wikipedia.org/wiki/%D0%90%D0%BB%D1%8C%D1%84%D0%B0_%D0%B7%D0%B0%D0%B4%D1%80%D0%B0%D0%BB" title="Альфа задрал – mongol" lang="mn" hreflang="mn" data-title="Альфа задрал" data-language-autonym="Монгол" data-language-local-name="mongol" class="interlanguage-link-target"><span>Монгол</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Pereputan_alfa" title="Pereputan alfa – malayu" lang="ms" hreflang="ms" data-title="Pereputan alfa" data-language-autonym="Bahasa Melayu" data-language-local-name="malayu" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nl badge-Q70894304 mw-list-item" title=""><a href="https://nl.wikipedia.org/wiki/Alfaverval" title="Alfaverval – neerlandés" lang="nl" hreflang="nl" data-title="Alfaverval" data-language-autonym="Nederlands" data-language-local-name="neerlandés" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Radioactivitat_%CE%B1" title="Radioactivitat α – occitanu" lang="oc" hreflang="oc" data-title="Radioactivitat α" data-language-autonym="Occitan" data-language-local-name="occitanu" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Rozpad_alfa" title="Rozpad alfa – polacu" lang="pl" hreflang="pl" data-title="Rozpad alfa" data-language-autonym="Polski" data-language-local-name="polacu" 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/Emiss%C3%A3o_alfa" title="Emissão alfa – portugués" lang="pt" hreflang="pt" data-title="Emissão alfa" data-language-autonym="Português" data-language-local-name="portugués" 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/Dezintegrare_alfa" title="Dezintegrare alfa – rumanu" lang="ro" hreflang="ro" data-title="Dezintegrare alfa" data-language-autonym="Română" data-language-local-name="rumanu" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%90%D0%BB%D1%8C%D1%84%D0%B0-%D1%80%D0%B0%D1%81%D0%BF%D0%B0%D0%B4" title="Альфа-распад – rusu" lang="ru" hreflang="ru" data-title="Альфа-распад" data-language-autonym="Русский" data-language-local-name="rusu" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Alfa_raspad" title="Alfa raspad – serbo-croata" lang="sh" hreflang="sh" data-title="Alfa raspad" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="serbo-croata" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-si mw-list-item"><a href="https://si.wikipedia.org/wiki/%E0%B6%87%E0%B6%BD%E0%B7%8A%E0%B7%86%E0%B7%8F_%E0%B6%9A%E0%B7%8A%E0%B7%82%E0%B6%BA%E0%B7%80%E0%B7%93%E0%B6%B8%E0%B7%8A" title="ඇල්ෆා ක්ෂයවීම් – cingalés" lang="si" hreflang="si" data-title="ඇල්ෆා ක්ෂයවීම්" data-language-autonym="සිංහල" data-language-local-name="cingalés" 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/Alfa_rozpad" title="Alfa rozpad – eslovacu" lang="sk" hreflang="sk" data-title="Alfa rozpad" data-language-autonym="Slovenčina" data-language-local-name="eslovacu" 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/Razpad_alfa" title="Razpad alfa – eslovenu" lang="sl" hreflang="sl" data-title="Razpad alfa" data-language-autonym="Slovenščina" data-language-local-name="eslovenu" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%90%D0%BB%D1%84%D0%B0_%D1%80%D0%B0%D1%81%D0%BF%D0%B0%D0%B4" title="Алфа распад – serbiu" lang="sr" hreflang="sr" data-title="Алфа распад" data-language-autonym="Српски / srpski" data-language-local-name="serbiu" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Alfas%C3%B6nderfall" title="Alfasönderfall – suecu" lang="sv" hreflang="sv" data-title="Alfasönderfall" data-language-autonym="Svenska" data-language-local-name="suecu" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%85%E0%AE%B2%E0%AF%8D%E0%AE%83%E0%AE%AA%E0%AE%BE_%E0%AE%9A%E0%AE%BF%E0%AE%A4%E0%AF%88%E0%AE%B5%E0%AF%81" title="அல்ஃபா சிதைவு – tamil" lang="ta" hreflang="ta" data-title="அல்ஃபா சிதைவு" data-language-autonym="தமிழ்" data-language-local-name="tamil" class="interlanguage-link-target"><span>தமிழ்</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%B9%83%E0%B8%AB%E0%B9%89%E0%B8%AD%E0%B8%99%E0%B8%B8%E0%B8%A0%E0%B8%B2%E0%B8%84%E0%B9%81%E0%B8%AD%E0%B8%A5%E0%B8%9F%E0%B8%B2" title="การสลายให้อนุภาคแอลฟา – tailandés" lang="th" hreflang="th" data-title="การสลายให้อนุภาคแอลฟา" data-language-autonym="ไทย" data-language-local-name="tailandés" 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/Alfa_bozunmas%C4%B1" title="Alfa bozunması – turcu" lang="tr" hreflang="tr" data-title="Alfa bozunması" data-language-autonym="Türkçe" data-language-local-name="turcu" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-tt mw-list-item"><a href="https://tt.wikipedia.org/wiki/%D0%90%D0%BB%D1%8C%D1%84%D0%B0-%D1%82%D0%B0%D1%80%D0%BA%D0%B0%D0%BB%D1%8B%D1%88" title="Альфа-таркалыш – tártaru" lang="tt" hreflang="tt" data-title="Альфа-таркалыш" data-language-autonym="Татарча / tatarça" data-language-local-name="tártaru" class="interlanguage-link-target"><span>Татарча / tatarça</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%90%D0%BB%D1%8C%D1%84%D0%B0-%D1%80%D0%BE%D0%B7%D0%BF%D0%B0%D0%B4" title="Альфа-розпад – ucraín" lang="uk" hreflang="uk" data-title="Альфа-розпад" data-language-autonym="Українська" data-language-local-name="ucraín" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Alfa-parchalanish" title="Alfa-parchalanish – uzbequistanín" lang="uz" hreflang="uz" data-title="Alfa-parchalanish" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="uzbequistanín" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/Ph%C3%A2n_r%C3%A3_alpha" title="Phân rã alpha – vietnamín" lang="vi" hreflang="vi" data-title="Phân rã alpha" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamín" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%CE%91%E8%A1%B0%E5%8F%98" title="Α衰变 – chinu" lang="zh" hreflang="zh" data-title="Α衰变" data-language-autonym="中文" data-language-local-name="chinu" class="interlanguage-link-target"><span>中文</span></a></li><li class="interlanguage-link interwiki-zh-min-nan mw-list-item"><a href="https://zh-min-nan.wikipedia.org/wiki/Alpha_soe-pi%C3%A0n" title="Alpha soe-piàn – chinu min nan" lang="nan" hreflang="nan" data-title="Alpha soe-piàn" data-language-autonym="閩南語 / Bân-lâm-gú" data-language-local-name="chinu min nan" class="interlanguage-link-target"><span>閩南語 / Bân-lâm-gú</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/Alpha_%E8%A1%B0%E8%AE%8A" title="Alpha 衰變 – cantonés" lang="yue" hreflang="yue" data-title="Alpha 衰變" data-language-autonym="粵語" data-language-local-name="cantonés" class="interlanguage-link-target"><span>粵語</span></a></li> </ul> <div class="after-portlet 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vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Apariencia</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">mover a la barra llateral</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">despintar</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> <div id="mw-indicator-tradubot" class="mw-indicator"><div class="mw-parser-output"><span typeof="mw:File"><a href="https://es.wikipedia.org/wiki/Desintegraci%C3%B3n_alfa" title="Esti artículu foi traducíu automáticamente y precisa revisase manualmente"><img alt="Esti artículu foi traducíu automáticamente y precisa revisase manualmente" src="//upload.wikimedia.org/wikipedia/commons/thumb/0/05/Robot_icon.svg/16px-Robot_icon.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/05/Robot_icon.svg/24px-Robot_icon.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/05/Robot_icon.svg/32px-Robot_icon.svg.png 2x" data-file-width="512" data-file-height="512" /></a></span></div></div> </div> <div id="siteSub" class="noprint">De Wikipedia</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="ast" dir="ltr"><figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/Ficheru:Alpha_Decay.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/79/Alpha_Decay.svg/220px-Alpha_Decay.svg.png" decoding="async" width="220" height="150" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/79/Alpha_Decay.svg/330px-Alpha_Decay.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/79/Alpha_Decay.svg/440px-Alpha_Decay.svg.png 2x" data-file-width="250" data-file-height="170" /></a><figcaption>Desintegración alfa.</figcaption></figure> <p>La <b>desintegración alfa</b> o <b>decaimiento alfa</b> ye una variante de <a href="/wiki/Radioactivid%C3%A1" title="Radioactividá">desintegración radiactiva</a> pola cual un <a href="/wiki/Nucleu_at%C3%B3micu" title="Nucleu atómicu">nucleu atómicu</a> emite una <a href="/wiki/Part%C3%ADcula_alfa" title="Partícula alfa">partícula alfa</a> y conviértese nun nucleu con cuatro unidaes menos de <a href="/w/index.php?title=N%C3%BAmberu_m%C3%A1sico&action=edit&redlink=1" class="new" title="Númberu másico (la páxina nun esiste)">númberu másico</a> y dos unidaes menos de <a href="/wiki/N%C3%BAmberu_at%C3%B3micu" title="Númberu atómicu">númberu atómicu</a>. </p><p>Puede consideráse-y emisión bonal de nucleos d'<a href="/w/index.php?title=Heliu-4&action=edit&redlink=1" class="new" title="Heliu-4 (la páxina nun esiste)">heliu 4</a> (<sup>4</sup>He<sup>2+</sup>) —d'equí p'arriba partícules α— a partir de nucleos d'átomos más pesaos, por aciu un procesu de <a href="/wiki/Fisi%C3%B3n_nuclear" title="Fisión nuclear">fisión nuclear bonal</a>. Esti tipu de desintegración ye típicu namái de los nucleos atómicos bien pesaos. </p><p>El teluriu 106 (<a href="/w/index.php?title=Teluriu-106&action=edit&redlink=1" class="new" title="Teluriu-106 (la páxina nun esiste)"><sup>106</sup>Te</a>) ye l'isótopu más llixeru nel cual asocede desintegración alfa na naturaleza. Artificialmente, el beriliu 8 <a href="/w/index.php?title=Beriliu_8&action=edit&redlink=1" class="new" title="Beriliu 8 (la páxina nun esiste)">(<sup>8</sup>Be)</a> se desintegra en dos <a href="/w/index.php?title=Part%C3%ADcules_alfa&action=edit&redlink=1" class="new" title="Partícules alfa (la páxina nun esiste)">partícules alfa</a>, nel <a href="/w/index.php?title=Procesu_triple_alfa&action=edit&redlink=1" class="new" title="Procesu triple alfa (la páxina nun esiste)">procesu triple alfa</a>, esencial pa xeneración de carbonu 12 (<a href="/w/index.php?title=Carbonu_12&action=edit&redlink=1" class="new" title="Carbonu 12 (la páxina nun esiste)"><sup>12</sup>C</a>) nel interior de les estrelles. </p><p>La secuencia d'esti fenómenu de desintegración representar por aciu la ecuación siguiente: </p> <dl><dd><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}^{A}{\hbox{X}}\;\to \;{}_{Z-2}^{A-4}{\hbox{Y}}\;+\;{}_{2}^{4}{\hbox{He}}^{2+}\;=\;_{Z-2}^{A-4}{\hbox{Y}}\;+\;\alpha }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msubsup> <mrow class="MJX-TeXAtom-ORD"> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mi>Z</mi> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mi>A</mi> </mrow> </msubsup> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mtext>X</mtext> </mstyle> </mrow> <mspace width="thickmathspace" /> <mo stretchy="false">→</mo> <mspace width="thickmathspace" /> <msubsup> <mrow class="MJX-TeXAtom-ORD"> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mi>Z</mi> <mo>−</mo> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mi>A</mi> <mo>−</mo> <mn>4</mn> </mrow> </msubsup> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mtext>Y</mtext> </mstyle> </mrow> <mspace width="thickmathspace" /> <mo>+</mo> <mspace width="thickmathspace" /> <msubsup> <mrow class="MJX-TeXAtom-ORD"> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mn>4</mn> </mrow> </msubsup> <msup> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mtext>He</mtext> </mstyle> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> <mo>+</mo> </mrow> </msup> <mspace width="thickmathspace" /> <mo>=</mo> <msubsup> <mspace width="thickmathspace" /> <mrow class="MJX-TeXAtom-ORD"> <mi>Z</mi> <mo>−</mo> <mn>2</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mi>A</mi> <mo>−</mo> <mn>4</mn> </mrow> </msubsup> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mtext>Y</mtext> </mstyle> </mrow> <mspace width="thickmathspace" /> <mo>+</mo> <mspace width="thickmathspace" /> <mi>α</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {}_{Z}^{A}{\hbox{X}}\;\to \;{}_{Z-2}^{A-4}{\hbox{Y}}\;+\;{}_{2}^{4}{\hbox{He}}^{2+}\;=\;_{Z-2}^{A-4}{\hbox{Y}}\;+\;\alpha }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/99b39185b1798cbab46834a4c28f4849054326d9" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.171ex; width:39.03ex; height:3.509ex;" alt="{\displaystyle {}_{Z}^{A}{\hbox{X}}\;\to \;{}_{Z-2}^{A-4}{\hbox{Y}}\;+\;{}_{2}^{4}{\hbox{He}}^{2+}\;=\;_{Z-2}^{A-4}{\hbox{Y}}\;+\;\alpha }"></span>.</dd></dl> <p>Col <a href="/wiki/Uraniu" title="Uraniu">uraniu</a> 238, por casu: </p> <dl><dd><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 {}^{2}{}_{92}^{38}{\hbox{O}}\;\to \;{}^{2}{}_{90}^{34}{\hbox{Th}}\;+\;\alpha }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msup> <mrow class="MJX-TeXAtom-ORD"> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> <msubsup> <mrow class="MJX-TeXAtom-ORD"> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mn>92</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mn>38</mn> </mrow> </msubsup> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mtext>O</mtext> </mstyle> </mrow> <mspace width="thickmathspace" /> <mo stretchy="false">→</mo> <mspace width="thickmathspace" /> <msup> <mrow class="MJX-TeXAtom-ORD"> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> <msubsup> <mrow class="MJX-TeXAtom-ORD"> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mn>90</mn> </mrow> <mrow class="MJX-TeXAtom-ORD"> <mn>34</mn> </mrow> </msubsup> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mtext>Th</mtext> </mstyle> </mrow> <mspace width="thickmathspace" /> <mo>+</mo> <mspace width="thickmathspace" /> <mi>α</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {}^{2}{}_{92}^{38}{\hbox{O}}\;\to \;{}^{2}{}_{90}^{34}{\hbox{Th}}\;+\;\alpha }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/c40e248998f9b9b72ddacaecc6cbde24e29e14f9" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.005ex; width:21.162ex; height:3.343ex;" alt="{\displaystyle {}^{2}{}_{92}^{38}{\hbox{O}}\;\to \;{}^{2}{}_{90}^{34}{\hbox{Th}}\;+\;\alpha }"></span></dd></dl> <p>La primer ecuación nun ta equilibrada eléctricamente. Pero, na mayoría de los casos el nucleu resultante pierde rápido dos electrones en favor de la partícula alfa y conviértese nun átomu de (<sup>4</sup>He), eléctricamente neutru. </p><p>Por esta razón, na mayoría de los casos, cuando esiste un mineral d'altu conteníu d'unu o más elementos radiactivos, na so contorna, pela vía d'<a href="/w/index.php?title=Escayencia&action=edit&redlink=1" class="new" title="Escayencia (la páxina nun esiste)">escayencia</a> alfa, fórmense bolses de <sup>4</sup>He. </p><p>Tol heliu esistente na Tierra aniciar por aciu desintegración alfa d'elementos radiactivos. Por cuenta de esto suel atopase en depósitos minerales ricos en <a href="/wiki/Uraniu" title="Uraniu">uraniu</a> o en <a href="/wiki/Toriu" title="Toriu">toriu</a>. Asina mesmu llógrase como <a href="/w/index.php?title=Subproductu&action=edit&redlink=1" class="new" title="Subproductu (la páxina nun esiste)">subproductu</a> en pozos d'estracción de <a href="/wiki/Gas_natural" title="Gas natural">gas natural</a>. </p><p>L'<a href="/wiki/Espectru_de_frecuencies" title="Espectru de frecuencies">espectro</a> propiu de la desintegración ye discretu: nun estudiu espectroscópico pueden reparase picos n'enerxíes identificables coles mesmes del procesu d'escayencia. </p><p>El rangu d'enerxíes a los que los nucleos emiten les partícules, <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 Y_{\alpha }}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>Y</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>α</mi> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle Y_{\alpha }}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/3c46f766b7763aac14d4c6fd969a90d955cc6e63" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:2.635ex; height:2.509ex;" alt="{\displaystyle Y_{\alpha }}"></span>, puede circunscribirse a 2 <a href="/w/index.php?title=MeV&action=edit&redlink=1" class="new" title="MeV (la páxina nun esiste)">MeV</a> <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 <Y_{\alpha }<}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mo><</mo> <msub> <mi>Y</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>α</mi> </mrow> </msub> <mo><</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle <Y_{\alpha }<}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/64839a47bdb4a11ab16c98a3512a3392bdcfbcf3" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:7.541ex; height:2.509ex;" alt="{\displaystyle <Y_{\alpha }<}"></span> 9 MeV (<a href="/w/index.php?title=Megavoltio&action=edit&redlink=1" class="new" title="Megavoltio (la páxina nun esiste)">megavoltios electrónicos</a> o <a href="/w/index.php?title=Megaelectronvoltio&action=edit&redlink=1" class="new" title="Megaelectronvoltio (la páxina nun esiste)">megaelectronvoltios</a>). </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Procesu_d'escayencia_d'un_nucleu"><span id="Procesu_d.27escayencia_d.27un_nucleu"></span>Procesu d'escayencia d'un nucleu</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Desintegraci%C3%B3n_alfa&veaction=edit&section=1" title="Editar seición: Procesu d'escayencia d'un nucleu" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Desintegraci%C3%B3n_alfa&action=edit&section=1" title="Editar el código fuente de la sección: Procesu d'escayencia d'un nucleu"><span>editar la fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/Ficheru:Dospot.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/69/Dospot.jpg/300px-Dospot.jpg" decoding="async" width="300" height="210" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/69/Dospot.jpg/450px-Dospot.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/69/Dospot.jpg/600px-Dospot.jpg 2x" data-file-width="720" data-file-height="504" /></a><figcaption>Potencial qu'afecta a una partícula alfa nes proximidaes del nucleu.</figcaption></figure> <p>El nucleu atómicu ye la parte central del átomu. Ta formáu por protones y neutrones, xuníos ente si pola interacción fuerte, que dexa que'l nucleu calténgase estable magar la repulsión electrostática ente los protones. La cantidá de protones nel nucleu determina l'elementu químicu al que pertenez. </p><p>La partícula α, d'enerxía <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 m_{\alpha }c^{2}=3727,378}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>m</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>α</mi> </mrow> </msub> <msup> <mi>c</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> <mo>=</mo> <mn>3727</mn> <mo>,</mo> <mn>378</mn> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle m_{\alpha }c^{2}=3727,378}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/a7ba757a4697ad78fbffad8e32b2b4970a8b111c" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:17.655ex; height:3.009ex;" alt="{\displaystyle m_{\alpha }c^{2}=3727,378}"></span> <a href="/w/index.php?title=MeV&action=edit&redlink=1" class="new" title="MeV (la páxina nun esiste)">MeV</a>, ye una de les más estables. Por tanto puede esistir como tal na estructura del nucleu pesáu. La enerxía cinética típica de les partícules alfa resultantes de la desintegración ye del orde de 5 MeV (≈0,13% de la so enerxía total). La so velocidá ye de 15 000 km/s. </p><p>Puede imaxinase esti fenómenu como una partícula atrapada nun <a href="/w/index.php?title=Pozu_de_potencial_cu%C3%A1nticu&action=edit&redlink=1" class="new" title="Pozu de potencial cuánticu (la páxina nun esiste)">pozu de potencial cuánticu</a> xeneráu pol restu de nucleones del átomu, onde'l <a href="/w/index.php?title=Potencial_coulombiano&action=edit&redlink=1" class="new" title="Potencial coulombiano (la páxina nun esiste)">potencial coulombiano</a> más allá del radiu del átomu ye dominante. </p><p>Clásicamente, si la enerxía, Y, de la partícula alfa fuera cimera a la <a href="/wiki/Enerx%C3%ADa_potencial" title="Enerxía potencial">enerxía potencial</a>, V(r), de la barrera de potencial, siendo r el radiu nuclear, aquella escaparía. Pero, de normal, la partícula nun puede escapar del átomu, yá que tien de superar la <a href="/w/index.php?title=Barrera_coulombiana&action=edit&redlink=1" class="new" title="Barrera coulombiana (la páxina nun esiste)">barrera coulombiana</a>, y llindaríase a rebotar dientro del nucleu. </p><p>La esplicación del fenómenu foi la confirmación del <a href="/wiki/Efeutu_t%C3%BAnel" title="Efeutu túnel">efeutu túnel</a>, predichu na <a href="/wiki/Mec%C3%A1nica_cu%C3%A1ntica" title="Mecánica cuántica">mecánica cuántica</a> y plantegáu por <a href="/w/index.php?title=George_Gamow&action=edit&redlink=1" class="new" title="George Gamow (la páxina nun esiste)">George Gamow</a>. </p> <div class="mw-heading mw-heading2"><h2 id="Toxicidá"><span id="Toxicid.C3.A1"></span>Toxicidá</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Desintegraci%C3%B3n_alfa&veaction=edit&section=2" title="Editar seición: Toxicidá" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Desintegraci%C3%B3n_alfa&action=edit&section=2" title="Editar el código fuente de la sección: Toxicidá"><span>editar la fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Al ser relativamente pesaes y cargaes positivamente, el <a href="/w/index.php?title=Percorr%C3%ADu_llibre_mediu&action=edit&redlink=1" class="new" title="Percorríu llibre mediu (la páxina nun esiste)">percorríu llibre mediu</a> de les partícules alfa ye bien curtiu, y a poca distancia de la fonte pierden rápido la so enerxía cinética. La consecuencia d'esto ye que nuna zona pequeña deposítase gran cantidá d'enerxía (del orde d'un <a href="/w/index.php?title=MeV&action=edit&redlink=1" class="new" title="MeV (la páxina nun esiste)">MeV</a>) y, en casu de contaminación interna, amonta'l riesgu de dañu celular. </p><p>Polo xeneral la radiación alfa esterna nun ye peligrosa: pocos centímetros d'aire o la delgada capa de piel muerta d'una persona absuerben les partícules. Tocar una fonte α suel nun ser dañible, pero -según seya la cantidá incorporada al organismu- el so ingestión, inhalación o introducción nel cuerpu pueden selo. </p><p>La principal fonte natural de radiación alfa que nos afecta na corteza terrestre ye'l <a href="/wiki/Rad%C3%B3n" title="Radón">radón</a>, gas radiactivo esistente nel suelu, l'agua, l'aire y dellos tipos de roques.<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> Al esneldar esti gas, dalgunos de los sos productos de desintegración queden atrapaos nos pulmones. </p><p>De la mesma, estos productos siguen desintegrándose y emitiendo partícules alfa, que pueden estropiar les célules pulmonares.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p><p>Probablemente la causa de la muerte de <a href="/wiki/Marie_Curie" title="Marie Curie">Marie Curie</a> -a los 66 años, por leucemia- fuera una esposición enllargada a altes dosis de <a href="/wiki/Radiaci%C3%B3n_ionizante" title="Radiación ionizante">radiación ionizante</a>. Trabayó frecuentemente con <a href="/wiki/Radiu_(elementu)" title="Radiu (elementu)">radiu</a>, qu'aparra en radón,<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> y de la mesma se desintegra n'otros elementos radiactivos emisores de <a href="/wiki/Desintegraci%C3%B3n_beta" class="mw-redirect" title="Desintegración beta">rayu beta</a> y <a href="/wiki/Rayu_gamma" class="mw-redirect" title="Rayu gamma">gamma</a>. </p><p>Sábese que pal asesinatu del disidente rusu <a href="/w/index.php?title=Alexander_Litvinenko&action=edit&redlink=1" class="new" title="Alexander Litvinenko (la páxina nun esiste)">Alexander Litvinenko</a>, en <a href="/wiki/2006" title="2006">2006</a>, utilizóse <sup>210</sup><a href="/wiki/Poloniu" title="Poloniu">Po</a>, que ye un <a href="/w/index.php?title=Radiois%C3%B3topo&action=edit&redlink=1" class="new" title="Radioisótopo (la páxina nun esiste)">radioisótopo</a> emisor alfa. </p> <div class="mw-heading mw-heading2"><h2 id="Referencies">Referencies</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Desintegraci%C3%B3n_alfa&veaction=edit&section=3" title="Editar seición: Referencies" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Desintegraci%C3%B3n_alfa&action=edit&section=3" title="Editar el código fuente de la sección: Referencies"><span>editar la fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r3503771">@media only screen and (max-width:600px){.mw-parser-output .llistaref{column-count:1!important}}</style><div class="llistaref" style="list-style-type: decimal;"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><a href="#cite_ref-1">↑</a></span> <span class="reference-text">«<a rel="nofollow" class="external text" href="https://web.archive.org/web/20180715152300/http://www.ans.org/pi/resources/dosechart/">ANS : Public Information : Resources : Radiation Dose Chart</a>». Archiváu dende l'<a rel="nofollow" class="external text" href="http://www.ans.org/pi/resources/dosechart/">orixinal</a>, el 2018-07-15.</span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><a href="#cite_ref-2">↑</a></span> <span class="reference-text">EPA Radiation Information: Radon. October 6 2006,<a rel="nofollow" class="external autonumber" href="http://www.epa.gov/radiation/radionuclides/radon.htm">[1]</a>, Accessed Dec. 6 2006</span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><a href="#cite_ref-3">↑</a></span> <span class="reference-text">Health Physics Society, "Did Marie Curie die of a radiation overexposure?" «<a rel="nofollow" class="external text" href="https://web.archive.org/web/20071019220501/https://hps.org/publicinformation/ate/q535.html">Copia archivada</a>». Archiváu dende l'<a rel="nofollow" class="external text" href="http://www.hps.org/publicinformation/ate/q535.html">orixinal</a>, el 19 d'ochobre de 2007. Consultáu'l 19 de payares de 2007.</span> </li> </ol></div> <div class="mw-heading mw-heading3"><h3 id="Bibliografía"><span id="Bibliograf.C3.ADa"></span>Bibliografía</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Desintegraci%C3%B3n_alfa&veaction=edit&section=4" title="Editar seición: Bibliografía" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Desintegraci%C3%B3n_alfa&action=edit&section=4" title="Editar el código fuente de la sección: Bibliografía"><span>editar la fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><cite style="font-style:normal">Eisberg, Robert Resnick, Robert (1994). <i>Física cuántica: Átomos, molécules, sólidos, nucleos y partícules</i>. Méxicu D.F.: Limusa. 968-18-0419-8, 978-9681804190.</cite></li></ul> <ul><li><cite style="font-style:normal">Antonio Ferrer Soria. <i>Físicu nuclear y de partícules editorial = Universidá de Valencia</i>.</cite>.</li></ul> <div class="mw-heading mw-heading2"><h2 id="Ver_tamién"><span id="Ver_tami.C3.A9n"></span>Ver tamién</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Desintegraci%C3%B3n_alfa&veaction=edit&section=5" title="Editar seición: Ver tamién" class="mw-editsection-visualeditor"><span>editar</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Desintegraci%C3%B3n_alfa&action=edit&section=5" title="Editar el código fuente de la sección: Ver tamién"><span>editar la fonte</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Desintegraci%C3%B3n_beta" class="mw-redirect" title="Desintegración beta">Desintegración beta</a></li> <li><a href="/wiki/Fisi%C3%B3n_nuclear" title="Fisión nuclear">Fisión nuclear</a></li> <li><a href="/wiki/Efeutu_t%C3%BAnel" title="Efeutu túnel">Efeutu túnel</a></li></ul> <p><br /> </p>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Sacáu de «<a dir="ltr" href="https://ast.wikipedia.org/w/index.php?title=Desintegración_alfa&oldid=4245365">https://ast.wikipedia.org/w/index.php?title=Desintegración_alfa&oldid=4245365</a>»</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Especial:Categor%C3%ADas" title="Especial:Categorías">Categoríes</a>: <ul><li><a href="/wiki/Categor%C3%ADa:Wikipedia:Revisar_traducci%C3%B3n" title="Categoría:Wikipedia:Revisar traducción">Wikipedia:Revisar traducción</a></li><li><a href="/w/index.php?title=Categor%C3%ADa:Radiactivid%C3%A1&action=edit&redlink=1" class="new" title="Categoría:Radiactividá (la páxina nun esiste)">Radiactividá</a></li><li><a href="/wiki/Categor%C3%ADa:F%C3%ADsica_nuclear" title="Categoría:Física nuclear">Física nuclear</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-hidden">Categoría anubrida: <ul><li><a href="/wiki/Categor%C3%ADa:Wikipedia:Tradubot" title="Categoría:Wikipedia:Tradubot">Wikipedia:Tradubot</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> La última edición d'esta páxina foi'l 14 ago 2024 a les 07:11.</li> <li id="footer-info-copyright">El testu ta disponible baxo la <a rel="nofollow" class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.es">Llicencia Creative Commons Reconocimientu/CompartirIgual 4.0</a>; puen aplicase términos adicionales. 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