Quantum Numbers Calculator
Explore and validate quantum number sets for electrons, with orbital identification and energy calculations.
Valid Quantum State3d
Orbital Type
d
Orbitals in Subshell
5
Max Electrons
10
Spin Direction
Up
Angular Nodes
2
Radial Nodes
0
Total Nodes
2
Energy (H-like)
-1.51 eV
Quantum Number Rules
- n (Principal): 1, 2, 3, ... - determines shell and energy
- l (Angular momentum): 0 to n-1 - determines subshell shape
- ml (Magnetic): -l to +l - determines orbital orientation
- ms (Spin): +1/2 or -1/2 - determines electron spin
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: Chemistry: The Central Science
by Brown, LeMay, Bursten
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.