(i) An atomic orbital 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 ? 1p, 2s, 2p and 3f.

(i) An atomic orbital has n=3. What are the possible values of l and m

1.	(i) An atomic orbital 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 ? 1p, 2s, 2p and 3f.
Answer» <P> Solution :(i) When `n=3, l=0, 1, 2`. When `l=0, m_(l)=0`. When `l=1, m_(l)=-1, 0, +1`. When `l=2, m=-2, -1, 0, +1, +2` (II) For 3d-orbital, `n=3, l=2`, For `l=2, m_(l)=-2, -1, 0, +1, +2`. (iii) 1p is not possible because when `n=1, l=0` only (for p, l=1) 2s is possible because when `n=2, l=0, 1` (for s, l=0) 2P is possible because when `n=2, l=0, 1` (for p, l=1) 3f is not possible because when `n=3, l=0, 1, 2` (for f, l=3).