Hund's Rule of Maximum Multiplicity

Hund's Rule of Maximum Multiplicity

### Formula:

$$\text{Maximum unpaired electrons}=\text{Number of available orbitals}$$

### Terminologies:

- Hund's Rule → Rule stating electrons occupy degenerate orbitals singly before pairing.

- Degenerate Orbitals → Orbitals having equal energy.

- Unpaired Electron → Electron occupying an orbital alone.

### Usage:

- Used to write correct electronic configuration of atoms.