Quantum Numbers Calculator
Calculate, validate, and understand the four quantum numbers that describe electron states.
Quantum Numbers
Quantum Numbers Status
VALID
(2, 1, 0, +0.5)
nOrbital
2p
lShape
Dumbbell
2n2Max e- (Shell)
8
4l+2Max e- (Subshell)
6
Node Information:
0
Radial Nodes
1
Angular Nodes
1
Total Nodes
Spin State:
Up (alpha)
The Four Quantum Numbers
n (Principal)
Energy level/shell. Values: 1, 2, 3, ... Determines size and energy.
l (Angular Momentum)
Subshell shape. Values: 0 to n-1. s=0, p=1, d=2, f=3.
ml (Magnetic)
Orbital orientation. Values: -l to +l. Determines spatial orientation.
ms (Spin)
Electron spin. Values: +1/2 or -1/2. Intrinsic angular momentum.