Question

What is an azimuthal quantum number?

Answer 1

Azimuthal quantum number$\left(\mathcal{l}\right)$

The azimuthal quantum number describes the angular momentum of the electrons revolving in different elliptical Orbit.

It represents the sub-shell present in the shell.
$\mathcal{l}$ = 0 represents s subshell.
$\mathcal{l}$ = 1 represents p subshell.
$\mathcal{l}$ = 2 represents d subshell.
$\mathcal{l}$ = 3 represents f subshell.