Question

The numbers of α and β particles emitted in the transformation 92U238 → 92U234 :

(a) 2, 1

(b) 1, 2

(c) 1, 1

(d) 1, 0

Answer 1

Correct option (b) 1, 2

Explanation:

Change in mass number = 4 a.m.u. Change in atomic number = No change

∴ α particle = 4/4 = 1

Change in atomic number due to α particle = 2 hence, 2β particles emitted.