(a) An electron is in 5f-orbital. What possible values of quantum numbers n,lm and s can it have?
(b). What designation is given to an orbital having
(i) n=2, l=1 and (ii). N=3,l=0?

Explanation

(a). For an electron in 5f-orbital, quantum numbers
are:
n=5, l=3, m=-3,-2,-1,0,+1,+2,+3
and s=either`+(1)/(2)` or `-(1)/(2)`
(b) (i) 2p,
(ii) 3s.