Extinct radionuclide
An extinct radionuclide is a radionuclide that was formed by nucleosynthesis before the formation of the Solar System, about 4.6 billion years ago, but has since decayed to virtually zero abundance and is no longer detectable as a primordial nuclide. Extinct radionuclides were generated by various processes in the early Solar system, and became part of the composition of meteorites and protoplanets. All widely documented extinct radionuclides have half-lives shorter than 100 million years.
AluminiumAluminium-26CalciumCeres_(dwarf_planet)Cosmic dustCuriumHafnium–tungsten datingIndex of physics articles (E)IodineIronIsotopes of curiumIsotopes of iodineIsotopes of nickelIsotopes of niobiumIsotopes of samariumNickelPeriod 7 elementPlutoniumPresolar grainsPrimordial nuclideRadioactive decayRadiogenic nuclideThorium1,2-dimethoxyethaan
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Extinct radionuclide
An extinct radionuclide is a radionuclide that was formed by nucleosynthesis before the formation of the Solar System, about 4.6 billion years ago, but has since decayed to virtually zero abundance and is no longer detectable as a primordial nuclide. Extinct radionuclides were generated by various processes in the early Solar system, and became part of the composition of meteorites and protoplanets. All widely documented extinct radionuclides have half-lives shorter than 100 million years.
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An extinct radionuclide is a r ...... hat have very long half-lives.
@en
On parle de radioactivité étei ...... re précoce du Système solaire.
@fr
Un radionucleido extinto o rad ...... ienen vidas medias muy largas.
@es
Un radionúclid extint és un ra ...... en meteorits), i el ferro 60.
@ca
النويدة المشعّة المنقرضة هي نو ...... عمر نصف أقل من 100 مليون سنة.
@ar
死滅放射性核種（しめつほうしゃせいかくしゅ）とは、放射能を持 ...... 年程度以下の長さを持っている必要があるとする文献も存在する。
@ja
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An extinct radionuclide is a r ...... horter than 100 million years.
@en
On parle de radioactivité étei ...... e des astéroïdes différenciés.
@fr
Un radionucleido extinto o rad ...... adamente 100 millones de años.
@es
Un radionúclid extint és un ra ...... tes de desintegració estables.
@ca
النويدة المشعّة المنقرضة هي نو ...... عمر نصف أقل من 100 مليون سنة.
@ar
死滅放射性核種（しめつほうしゃせいかくしゅ）とは、放射能を持 ...... 年程度以下の長さを持っている必要があるとする文献も存在する。
@ja
label
Extinct radionuclide
@en
Radioactivité éteinte
@fr
Radionucleido extinto
@es
Radionúclid extint
@ca
نويدة مشعة منقرضة
@ar
死滅放射性核種
@ja