Quantum Number
Principal
Symbol Values
Specifies
Indicates
n
1,2, ...
main energy level
size
sub-level or "shape" of the wavefunction / orbital.
Example
Angular Momentum/Azimuthal ℓ
0,1, ..., n-1
s-spherical
shape
p -peanut
d -dumbbell
f-flower
Magnetic
Spin
mℓ
ms
–ℓ,..0..,+ℓ orbitals in the subshell
+1/2, -1/2 spin state
orientation
spin direction