Question

Maganise exhibits the highest oxidation state of 7 among the 3d series of t

Answer 1

manganese exhibits highest oxidation state in KMnO4

Answer 2

Explanation:

The electronic configuration of manganese is $1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^{2}3d^{5}$. The outermost shells, that is, 3d and 4s have maximum number of electrons as compared to other transition elements.

Thus, it can easily either loose or share electrons and can show oxidation state in between +2 to +7.

That is why, manganese exhibits the highest oxidation state of 7 among the 3d series of transition elements.