Upon analyzing the electronic structure of the intermediate, dark green Manganate ion (), what is th — d and f Block Elements Chemistry Question

💡 Solution & Explanation

In the manganate ion ($MnO_4^{2-}$), the central Manganese atom exhibits an oxidation state of $+6$. The neutral Manganese atom has a ground state configuration of $[Ar] 3d^5 4s^2$. Losing $6$ electrons leaves it with a valence configuration of strictly $3d^1$. This single remaining electron is unpaired, giving the manganate ion its characteristic paramagnetism and contributing to its green colour.