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Arindam Ghosh

· started a discussion

· 1 Months ago

wrong (Question: 439170.0 )

deuterium 1H2 , tritium 1H3 so 1h2 is the lighest here

Question:

Which is the lightest radioactive element?

Options:
A)

Deuterium

B)

Polonium

C)

Tritium

D)

Uranium

Solution:

Ans: (c)

The lightest radioactive element is tritium, 3H, an isotope of hydrogen. It’s hydrogen with its one proton, but it has two neutrons hanging around in its nucleus as well. Tritium, 3H, is created naturally by cosmic rays. It has a half-life of 12.32 years, at which time it undergoes decay to 3He. It is also the product of neutron activation or neutron capture in nuclear reactors.

Nihit

· commented

· 1 Months ago

Yet to be approved!

Knowledge Expert

· commented

· 1 Months ago

Dear Student,
The given answer is correct.
Please check carefully.

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