Which element from following exhibits lowest number of different oxidation states?

Question

Aicharya · Accepted Answer

As the number of unpaired electrons in 3d orbitals increases, the number of oxidation states shown by the element also increases. $\mathrm{Zn}=[\mathrm{Ar}] 3 \mathrm{~d}^{10} 4 \mathrm{~s}^2$ shows only +2 oxidation state.

Which element from following exhibits lowest number of different oxidation states?

Solution