Question

Why does Fe show different oxidation
states?​

Answer 1

$\huge\mathbb\purple{A}\mathbb\blue{N}\mathbb\red{S}\mathbb\green{W}\mathbb\pink{E}\mathbb\purple{R}\blue{:-}$

These elements show variable oxidation state because their valence electrons in two different sets of orbitals, that is (n-1)d and ns. The energy difference between these orbitals is very less, so both the energy levels can be used for bond formation. Thus, transition elements have variable oxidation states.

Answer 2

These elements show variable oxidation state because their valence electrons in two different sets of orbitals, that is (n-1)d and ns. The energy difference between these orbitals is very less, so both the energy levels can be used for bond formation. Thus, transition elements have variable oxidation states.