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For nuclide ""(Z)X""^(A), which of the f...

For nuclide `""_(Z)X""^(A)`, which of the following changes snot take place in respective decay:

A

Both (A) and (Z) decreases in `alpha`-decay

B

Both (A) and (Z) do not change in `gamma`-decay

C

(A) does not change but (Z) decreases by one unitun positrondecay or k-electron capture

D

Both (A) and (Z) increases in `beta`-decay

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