A) \[3\,\alpha \] and \[2\,\beta \]
B)
\[5\,\alpha \] and 
C) \[3\,\alpha \] and \[3\,\beta \]
D) \[5\,\alpha \] and \[5\,\beta \]
Correct Answer: C
Solution :
| [c] By mean of emission of an \[\alpha \]-particle the atomic number is decreased by two unit while mass number is decreased by four unit, but in case of emission of one, \[\beta \]-particle the atomic number is increased by one unit while mass number is not effected |
| \[_{92}{{X}^{232}}\underset{-3\beta }{\mathop{\xrightarrow{-3\alpha \,and}}}\,{{\,}_{89}}{{Y}^{220}}\] |
| So, \[3\,\alpha \] and \[3\,\beta \] particles are ejected. |
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