Consider the ground state `Cr` atom `(Z = 24)`. The number of electron with the azimuthal number `l = 1` and `2` ,respectively are

Options

A. ` 16 and 5`
B. ` 12 and 5`
C. ` 16 and 4`
D. ` 12 and 4`

Answer

B

Explanation

`._(24)Cr: 1s^2 , 2s^2 2p^6 . 3s^2 3p^3 3p^6 3d^6 3d^5 , 4s^1`
` l=1 l=1 l=2`
(d) two quantum mechanicl states which have no classicl analogue .