A nucleus undergoes an -decay followed immediately by two successive -decays

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

Problem

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

nucleus undergoes an

\alpha

-decay followed immediately by two successive

\beta^{-}

-decays. Which nucleus is finally obtained? (a)

^{224}_{88}\mathrm{Ra}

(b)

^{222}_{86}\mathrm{Rn}

(c)

^{222}_{88}\mathrm{Ra}

(d)

^{222}_{87}\mathrm{Fr}