Which of the following isotope of hydrogen is radioactive and emits low energy $$\beta^{\ominus}$$ particles $$(t_{1/2}, 12.33$$ years)
A
Protium
B
Tritium
C
Deuterium
D
All of these
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Correct option is C. Tritium Tritium isotope of hydrogen is radioactive and emits low energy $$\beta^-$$ particles. It is because of high n/p ratio of tritium which makes nucleus unstable.
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