Of the following outer electronic configurations of atoms, the highest oxidation state is achieved by which one of them ?

Options

A. `(n-1) d^(3) ns^(2)`
B. `(n-1)d^(5)ns^(-1)`
C. `(n-1)d^(8) ns^(2)`
D. `(n-1)d^5 ns^(2)`

Answer

D

Explanation

`(n-1)d^5 ns^2` attains the maximum O.S of +7