questionedithistorytranslations

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This is the accepted version.
added by Paweł Kołodziejczyk Aug. 4, 2015, 12:49 p.m.
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
0
Correct this question
wikipedia → Tritium
3
Very interesting!
reach: rather globalchemistryhydrogennamesphysics

Votes

+3 Very interesting!  globalquiz.org
      Acceptable  Claudia Segura
      Acceptable  Cleo
      Acceptable  Luca Biaggi