Question

Quantum numbers $l=2$ and $m=0$ represent which orbital?

• A. $d_{xy}$
• B. $d_{x^2-y^2}$
• C. $d_{z^2}$
• D. $d_{zx}$

Answer 1

The correct option is C $d_{z^2}$

Quantum numbers $l=2$ and $m=0$ represent $d_{z^2}$ orbital.
Note: For s,p,d and f orbitals, the value of the azmithual quantum number 'l' is 0,1,2,3.
When $l=2$, m can have values $-2,-1,0,+1,+2$.
A d-subshell can have five different orientations and orbitals corresponding to these orientations are $d_{xy},d_{xz},d_{yz},d_{x^2-y^2}{d}_{z^2}$.