Question

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

Answer 1

a) For an electron in $5f$ orbital, quantum numbers are

$n=5,l=3,m=[-3,+3],s=\frac{+1}{2},\frac{-1}{2}$

b) $1)n=2,l=1$

$2^{nd}$ shell with azimuthal quantum number $1$

$\therefore 2p$ orbital

c) $n=3,l=0$

$3^{rd}$ shell with azimuthal quantum number $0$

$3s$ orbital