An atom with atomic number $15$ contains:

The quantum numbers for the outermost electron of an element are given as $n = 2, l = 0, m = 0, s = +\frac{1}{2}$. The element is

What is the maximum number of electrons that can be accommodated in $d$ and $f$ orbitals,respectively?

The correct order of energy for orbitals in a multi-electron atom is:

The subshell that arises after $f$ is called $g$ subshell.
$(a)$ How many $g$ orbitals are present in the $g$ subshell?
$(b)$ In what principal electronic shell would the $g$ subshell first occur and what is the total number of orbitals in this principal shell?

What do the quantum numbers $n$,$l$,and $m_l$ represent?