1) In which sequence the radioactive radiations are emitted in the following nuclear reaction? $_{z}X^{A}\rightarrow _{z+1}Y^{A} \rightarrow_{z-1}K^{A-4}\rightarrow_{z-1}K^{A-4}$ A) $\gamma,\alpha,\beta$ B) $\alpha,\beta,\gamma$ C) $\beta,\gamma,\alpha$ D) $\beta,\alpha,\gamma$ Answer: Option DExplanation:$_{z}X^{A}\underrightarrow {-\beta^{0}}_{z+1}Y^{A}$ $ \underrightarrow{_{2}He^{4}}_{z-1}K^{A-4}$ $\underrightarrow{_{0}\gamma^{0}}{z-1}K^{A-4}$
