Question

E Class 12 Physics MCQ Pdf Question 9. A nucleus _{Z}^{\mathbf{A}} \mathbf{X} emits an α-particle. The resultant nucleus emits a β-particle. The respective atomic and mass numbers of the daughter nucleus will be
(a) Z – 3, A – 4
(b) Z – 1, A – 4
(c) Z – 2, A – 4
(d) Z, A – 2

Answer 1

Answer:

a is the correct answer. Z-3,A-4