The number of electrons present in `Co^(2+)` having azimuthal quantum number l=1 is ,

Options

A. 6
B. 8
C. 10
D. 12

Answer

D

Explanation

`._27Co^(2+): 1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(7)`
Number of electron with(l=1)=number of electrons present in p-subshells.
6+6=12