Undergoes two successive decays followed by one decay

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

Problem

_{88}^{226}\text{Ra}

undergoes two successive

\alpha

decays followed by one

\beta^-

decay. Which of the following is the final nuclide produced? (a)

_{83}^{218}\text{Bi}

(b)

_{85}^{218}\text{At}

(c)

_{84}^{218}\text{Po}

(d)

_{85}^{222}\text{At}