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A nucleus .(Z)X^(A) emits 2 alpha - part...

A nucleus `._(Z)X^(A)` emits 2 `alpha -` particles and 3 `beta -` particles. The ratio of total protons and neutrons in the final nucleus is :

A

`(Z - 7)/(A - Z + 7)`

B

`(Z - 1)/(A - Z - 8)`

C

`(Z - 1)/(A - Z - 7)`

D

`(Z - 3)/(A - Z + 3)`

Text Solution

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The correct Answer is:
C
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