Question

The magnitude of L, for a d-electron, in one electron atomic system is?

Answer 1

The orbital quantum number of d electron is $l=2$

The magnitude of total orbital quantum number for a d-electron in one electron atomic system is

$L=\sqrt{l(l+1)} \frac{h}{2 \pi}$

$=\sqrt{2(2+1)} \frac{h}{2 \pi}=\sqrt{6} \frac{h}{2 \pi}$