The quantum numbers $n = 2, l = 1$ represent:

$A$ sub-shell with $l = 2$ can accommodate how many electrons?

The maximum number of sub-levels, orbitals and electrons in $N$ shell of an atom are respectively

The angular momentum of an electron in a $d$ orbital is equal to:

Consider the following statements :
$(a)$ Electron density in the $xy$ plane in $3d_{x^2-y^2}$ orbital is zero.
$(b)$ Electron density in the $xy$ plane in $3d_{z^2}$ orbital is zero.
$(c)$ $2s$ orbital has one nodal surface.
$(d)$ For $2p_z$ orbital,$yz$ is the nodal plane.
Select the incorrect statements $:-$

Which of the following sets of quantum numbers is correct for an electron in $4f$ orbital?