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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

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

B

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

C

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

D

both the isobars are stable

Text Solution

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The correct Answer is:
C
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