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questionedithistorytranslations
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flag English language

Which of the hydrogen isotopes is radioactive?
Protium
Deuterium
Tritium
None
The two lightest isotopes of hydrogen are stable (protium and deuterium). The tritium is radioactive and unstable, with a half-life of 12.32 years. It is the only radioactive isotope of hydrogen which naturally occurs on Earth (although it is extremely rare).
Paweł Kołodziejczyk
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wikipedia → Tritium
3
Very interesting!

flag Polish language

Który z izotopów wodoru naturalnie występujących na Ziemi jest radioaktywny?
prot
deuter
tryt
żaden
Dwa najlżejsze izotopy są stabilne (prot i deuter). Tryt, zawierający w jądrze 2 neutrony jest radioaktywny i niestabilny, ma czas połowicznego rozpadu 12,32 lat. Do tej pory w sposób sztuczny udało się jeszcze uzyskać 4 izotopy wodoru, są one jednak wysoce niestabilne.
Paweł Kołodziejczyk
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0
Very uninteresting
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Correct this question
wikipedia → Izotopy wodoru
3
Very interesting!
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