The largest oxidation number exhibited by an element depends on its outer eletronic configuration. With which of the following outer electronic configurations the element will exhibit largest oxidation number ?

Options

A. `3d^(1)4s^(2)`
B. `3d^(3)4s^(2)`
C. `3d^(5)4s^(1)`
D. `3d^(5)4s^(2)`

Answer

D

Explanation

`3d^(1)4s^(2)` will exhibit +3, `3d^(3)4s^(2)=+5, 3d^(5)4s^(1)=+6` and `3d^(5)4s^(2)=+7` oxidation numbers.