Which of the following is known as heavy hydrogen?

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Tritium

Deuterium

Protium

answer is A.

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Detailed Solution

Deuterium (D, or $^{2} H$ ), commonly referred to as heavy hydrogen, is an isotope of hydrogen with a nucleus made up of one proton and one neutron that is twice as massive as the nucleus of regular hydrogen (one proton). Atomic weight 2.014 is that of deuterium.

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