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Tritium is an isotope of hydrogen whose ...

Tritium is an isotope of hydrogen whose nucleus triton contains 2 neutrons and 1 proton. Free neutrons decay into `p+e^(-)+barV`. If one of the neutrons in triton decays, then it would transform into `He^(3)` nucleus. This does not happen. This is because

A

Triton energy is less than that of a `He^(3)` nucleus.

B

The electron created in the beta decay process cannot remain in the nucleus.

C

Both the neutrons in tritono have to decay simultaneously resulting in a nucleus with 3 protons, which is not a `He^(3)` nucleus.

D

Because free neutrons decay due to external perturbations which is absent in a triton nucleus.

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The correct Answer is:
A
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