Name the oxometal anions of the first series of the transition metals in which the metal exhibits the oxidation state equal to its group number.
Name the oxometal anions of the first series of the transition metals in which the metal exhibits the oxidation state equal to its group number.

The name of the oxometal anions are as follows:

(i) Chromate, CrO42-

Oxidation state of Cr is + 6.

(ii) Permanganate, MnO4

Oxidation state of Mn is + 7.

(iii) Vanadate, VO3

Oxidation state of V is + 5.