Hund's Rule — Definition, Formula, Properties & Uses | AllChemicals | AllChemicals

What is Hund's Rule?

Hund's rule states that when filling degenerate orbitals (orbitals of equal energy), electrons occupy each orbital singly with parallel spins before any pairing occurs. This arrangement minimizes electron-electron repulsion and results in the most stable electronic configuration for an atom or ion. Hund's rule is essential for correctly writing electron configurations and explains the magnetic properties of many atoms and molecules.

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Term Hund's Rule

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What is Hund's Rule?

Hund's rule states that when filling degenerate orbitals (orbitals of equal energy), electrons occupy each orbital singly with parallel spins before any pairing occurs. This arrangement minimizes electron-electron repulsion and results in the most stable electronic configuration for an atom or ion. Hund's rule is essential for correctly writing electron configurations and explains the magnetic properties of many atoms and molecules.

More "H" Terms

1-Hexanol C6H14O 2-Hydroxyethyl methacrylate C6H10O3 4-Hydroxybenzaldehyde C7H6O2 Haber Process N₂ + 3H₂ ⇌ 2NH₃ | ΔH = −92 kJ/mol Hafnium Hf Half Cell Half Life Half-Cell E = E° − (RT/nF)lnQ Half-Life A(t) = A₀e^(−λt); t½ = ln2/λ Half-Reaction Halide X⁻ (e.g., F⁻, Cl⁻, Br⁻, I⁻) Halogen F₂, Cl₂, Br₂, I₂, At; Group 17; ns²np⁵ valence configuration

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