Calculate the minimum and the maximum number of electrons which may have the magnetic quantum number, `m = +1` and the spin quantum number, `S = -1/2` in chromium (Cr).

Options

A. 0,1
B. 1,2
C. 4,6
D. 2,3

Answer

D

Explanation

Out of 4 electrons in both `2px and 3px`, must have one electron in each with `m = +1 and s = - 1/2`. but in 3d subshell, an orbital may have the spin quantum number as `- 1/2 " or " +1/2` Therefore, the minimum and the maximum possible values are 2 and 3, respectively.