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Masses of two isobars .(29)Cu^(64) and ....

Masses of two isobars `._(29)Cu^(64)` and `._(30)Zn^(64)` are `63.9298 u` and `63.9292 u`, respectively. It can be concluded from these data that .

A

Both the isobars are stable

B

`.^(64)Zn` is radioactive, decaying to `.^(64)Cu` through `beta`-decay

C

`.^(64)Cu` is radioactive, decaying to `.^(64)Zn` through `gamma`-decay

D

`.^(64)Cu` is radioactive, decaying to `.^(64)Zn` through `beta`-decay

Text Solution

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The correct Answer is:
D
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