Where does the electronic configuration occur in an atom?

If $n = 6,$ the correct sequence for filling of electrons will be

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?

Arrange the orbitals of $H$-atom in the increasing order of their energy:
$3p_x, 2s, 4d_{xy}, 3s, 4p_z, 3p_y, 4s$

Possible number of orientations of a subshell is

The maximum probability of finding an electron in the $d_{xy}$ orbital is