A nucleus of polonium emits an alpha particle

PHYSICS · Single correct · CBSE · Physics · Nuclei · Nuclei

Problem

14. A nucleus of polonium

-218\left(\frac{218}{84} P o\right)

emits an alpha particle

\left(\frac{4}{2} \alpha\right)

. The next two elements in radioactive decay chain each emit a beta particle

\left(\frac{0}{-1} B^{-}\right)

. What would be the resulting nucleus after these three decays have occurred? (A)

\frac{214}{82} \mathrm{~Pb}

(B)

\frac{214}{84} \mathrm{Po}

(C)

\frac{214}{85} A t

(D)

\frac{222}{86} R n