Question

A light element in period-3 with a neutron/proton ratio around 1.

July 25, 2024

Answer

Sodium is a stable element having neutron/proton ratio around 1 (approximately).

Reason

(a) No. of protons (p) = 11

(b) No. of neutrons (n) = 23 – 11 = 12

n : p = 12 : 11 = 1.09 ≈ 1

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