Question

If ₉₂U²³⁵ is assumed to decay only by emitting two α and one β particles. The possible product of decay is : 

(a) ₈₉Ac²²⁷ 

(b) ₈₉Ac²³⁵ 

(c) ₈₉Ac²¹¹ 

(d) ₈₉Ac²³⁷

Answer 1

Correct option (a) ₈₉Ac²²⁷

Explanation:

Loss of α-particle decreases atomic number by 2 and mass number by 4, where as emission of β particle increases atomic number by 1 .