A) 1
B) 2
C) 4
D) 6
Correct Answer: A
Solution :
\[\alpha \] -particle are emitted\[=\frac{238-222}{4}=4\] The atomic number is decreased \[90-4\times 2=82\] As atomic number of \[{}_{83}{{Y}^{222}},\] so atomic number is increased by 1, therefore one \[\beta \]-particle is emitted.You need to login to perform this action.
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