Of the following outer lectronic configurations fo atoms the highest oxdation state is achieved by wbhich one fo them :

Options

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

Answer

A

Explanation

` + 7` state be achiveld by five d-electron asn two s-electrons .