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A radioactive nucleus (initial mass numb...

A radioactive nucleus (initial mass number A and atomic number Z) emits `3alpha`-particles and 2 positrons. The ratio of number of neutrons to that of protons in the final nucleus will be

A

`(A-Z-8)/(Z-4)`

B

`(A-Z-4)/(Z-8)`

C

`(A-Z-12)/(Z-4)`

D

`(A-Z-4)/(Z-2)`

Text Solution

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The correct Answer is:
B
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