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

(b) `Cr(Zn = 24)`
electronic configuration is : `1 s^2 2 s^2 2 p^6 3 s^2 3 p^6 4 s^1 3 d^5`
So, number of electrons in `l = 1`, i.e., p-subshell is `12` and number of electron in `l = 2`, i.e., `d` subshell is `5`.