An tomic obital has n=3 , what are the possible values of ` l and m_(l)` ?
(ii) List the quantum numbers `(m_(l) and l)` of electrons for 3d orbital .
(iii) which of the following orbitals are possible ?

Explanation

(i) When n=3, l=0,1,2
For l=0, `m_(l)=0" For l=1, m"_l=-1, 0,+1` (ii) For 3d-orbital, n=3, l=2, `m_l=-2, -1, 0, +1, +2` (any value)
(iii) 1p, Not possible because when n=1, l=0 only (for p, l=1)
2s: Possible because when n=1, l=0,1 (for s, l=0)
2p , Possible because when n=2, l=,1 (for p, l=1)
3f , Not possible because when n=3, l=0,1,2 (for f, l=3)