Question

Consider the ground state `Cr` atom `(Z = 24)`. The number of electron with the azimuthal number `l = 1` and `2` ,respectively are
A. 16 and 4
B. 12 and 5
C. 12 and 4
D. 16 and 5

Answer 1

Correct Answer - B
`._24Cr to 1s^2 , 2s^2 , underset"l=1"(2p^6) ,3s^2, underset"l=1"(3p^6), underset(l=2)(3d^5), 4s^1`
(We know that for p the value of l=1 and for d, l=2)
For l=1 total number of electron =12
For l=2 total number of electron =5