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Question

Question: A nucleus \(nX^{m}\)emits one \(\alpha\) and one \(\beta\) particles. The resulting nucleus is....

A nucleus nXmnX^{m}emits one α\alpha and one β\beta particles. The resulting nucleus is.

A

nXm−4nX^{m - 4}

B

n−2Ym−4n - 2Y^{m - 4}

C

n−4Zm−4n - 4Z^{m - 4}

D

n−1Zm−4n - 1Z^{m - 4}

Answer

n−1Zm−4n - 1Z^{m - 4}

Explanation

Solution

nXm→αn−2Xm−4→−βn−1Xm−4nX^{m}{\overset{\quad\alpha\quad}{\rightarrow}}_{n - 2}X^{m - 4}{\overset{\quad - \beta\quad}{\rightarrow}}_{n - 1}X^{m - 4}