Question

Identify the radio isotopes in the following reactions.

(i) ₁₅P⁸ + ₀n¹ → X + γ 

(ii) ₀n¹ → _ZY^A + _-1e⁰ + γ^-

Answer 1

(i) ₁₅P⁸ + ₀n¹ → X + γ 

Mass number of X = 31 + 1 = 32 

Atomic number of Y= 15 + 0 =15

∴ X is ₁₅P³¹

(ii) ₀n¹ → _zY^A + _-1e⁰ + γ^- 

Mass number 1 = A + 0 

∴ A = 1

Atomic number 0 = Z – 1 

∴ Z = 1

_ZY^A is ₁H¹