Question

Give the general group characteristic applied to hydrogen with respect to similarity in properties of hydrogen with alkali metals of group 1 [IA]. With special reference to valency electrons & ion formation.

Answer 1

1. Electronic Configuration — Valency electron - one valence electron e.g., H = 1; Li = 2, 1; Na = 2, 8, 1; K = 2, 8, 8, 1
2. Ion Formation — Electropositive character exhibited.
   H – 1e^– ⟶ H¹⁺
   Li – 1e^– ⟶ Li¹⁺
   Na – 1e^– ⟶ Na¹⁺
3. Valency — Electrovalency of 'one' exhibited. H¹⁺, Li¹⁺, Na¹⁺