(a) How many sub-shells are associated with n = 4? (b) How many electrons will be present in the sub-shells having m_(s) value of -1//2 for n = 4?

(a) How many sub-shells are associated with n = 4? (b) How many elect

1.	(a) How many sub-shells are associated with n = 4? (b) How many electrons will be present in the sub-shells having m_(s) value of -1//2 for n = 4?
Answer» Solution :(a) `n = 4, l = 0, 1, 2,3` (4 subshells, VIZ , s, p, d and F) (b) No. of orbitals in 4th shell `= n^(2) = 4^(2) =1 6` Each orbital has one ELECTRON with `m_(s) = -1//2`. Hence, there will be 16 electrons with `m_(s) = -1//2`