A) 76
B) 78
C) 82
D) 74
Correct Answer: B
Solution :
Since, 8 \[\alpha \]-particles, \[4{{\beta }^{-}}\] -particles and \[2{{\beta }^{+}}\] -particles are emitted, so new atomic number \[Z'=Z-8\times 2+4\times 1-2\times 1\] \[=92-16+4-2\] \[=92-14=78\]You need to login to perform this action.
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