Question

Give one example each of (a) $\alpha -emission$, (b) ${\beta }^{+}-emission$, and (c) $K-capture$. Write the equation for these nuclear changes.

Answer 1

(a) ${}_{92}^{235}U{\to }_{90}^{231}Th{+}_2^{4}He(\alpha -emission)$

(b) ${}_{11}^{22}Na{\to }_{10}^{22}Ne{+}_{+1}^{0}e({\beta }^{+}-emission)$

(c) ${}_{56}^{133}Ba+e^{-}{\to }_{55}^{133}Cs+X-ray(K-capture)$.