Question

What is Dissimilarities with Alkali Metals?

Answer

Hydrogen and alkali metals have some points of dissimilarities: (i) Unlike alkali metals, hydrogen shows non-metallic character under ordinary conditions. (ii) Hydrogen exists as diatomic molecule whereas all the alkali metals are monoatomic. (iii) Size of H¹ ion is much smaller than cations of alkali metals. (iv) Hydrogen has very high ionisation energy in comparison to alkali metals.