Question

Why is aluminium more stable in its +3 oxidation state than its +2 Oxidation state

Answer 1

$\Large\sf\red{Answer}$

It has three valence electrons that are removed relatively easily. Al is in Group 13, so it has three valence electrons. It is easier to remove three electrons, so Al most often has an oxidation state in its compounds in +3 state.

Answer 2

It has three valence electrons that are removed relatively easily. Al is in Group 13, so it has three valence electrons. It is easier to remove three electrons, so Al most often has an oxidation state in its compounds in +3 state.