Question

What is Resemblance with Alkali Metals?

Answer

Hydrogen shows resemblance with alkali metals in the following respects: (i) Like alkali metals, hydrogen has similar outermost electronic configuration. (ii) It has one valence electron in s-orbital like alkali metals. It can lose one electron to form H+ ion like alkali metals. (iii) Like alkali metals, the normal valency of hydrogen is 1. (iv) Like alkali metals, hydrogen exhibits electropositive character.