Physics:Quantum atoms/angular momentum - Revision history

WikiHarold: Finish Quantum residual red link cleanup

2026-05-23T23:54:18Z

Finish Quantum residual red link cleanup

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			[[File:Quantum_atoms_angular_momentum_concept_map.svg\|thumb\|280px\|angular momentum in the Quantum Collection.]]
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WikiHarold: Remove imported red links from Quantum page

2026-05-23T23:46:40Z

Remove imported red links from Quantum page

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	~~[[File:Angular_momentum_quantum.png\|thumb\|280px\|Quantization of angular momentum in atomic orbitals.]]~~
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WikiHarold: Expand short Quantum intro

2026-05-23T22:59:03Z

Expand short Quantum intro

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	'''Angular momentum''' in an [[Physics:Quantum atoms/atom\|atom]] is a quantized physical quantity associated with the motion and intrinsic properties of an [[Physics:Quantum atoms/electron\|electron]]. It plays a central role in determining the structure of [[Physics:Quantum atoms/orbital\|orbitals]] and the behavior of electrons in atoms.		'''angular momentum''' is a Book II topic in the Quantum Collection. '''Angular momentum''' in an [[Physics:Quantum atoms/atom\|atom]] is a quantized physical quantity associated with the motion and intrinsic properties of an [[Physics:Quantum atoms/electron\|electron]]. It plays a central role in determining the structure of [[Physics:Quantum atoms/orbital\|orbitals]] and the behavior of electrons in atoms. Angular momentum is represented by operators with quantized eigenvalues and noncommuting components. In atoms it includes orbital angular momentum, spin angular momentum, and their couplings. These quantities determine degeneracies, selection rules, magnetic moments, fine structure, hyperfine structure, and the response of atoms to external electric and magnetic fields.
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Harold: Restore Quantum article header template

2026-05-17T21:51:39Z

Restore Quantum article header template

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	{{Short description\|Quantized angular momentum in atomic systems}}		{{Short description\|Quantized angular momentum in atomic systems}}

	~~[[Book:~~Quantum ~~Collection/Matter (by scale)~~\|~~← Back to Matter by scale]]~~		{{Quantum matter backlink\|Atoms}}

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	'''Angular momentum''' in an [[Physics:Quantum atoms/atom\|atom]] is a quantized physical quantity associated with the motion and intrinsic properties of an [[Physics:Quantum atoms/electron\|electron]]. It plays a central role in determining the structure of [[Physics:Quantum atoms/orbital\|orbitals]] and the behavior of electrons in atoms.		'''Angular momentum''' in an [[Physics:Quantum atoms/atom\|atom]] is a quantized physical quantity associated with the motion and intrinsic properties of an [[Physics:Quantum atoms/electron\|electron]]. It plays a central role in determining the structure of [[Physics:Quantum atoms/orbital\|orbitals]] and the behavior of electrons in atoms.
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			[[File:Angular_momentum_quantum.png\|thumb\|280px\|Quantization of angular momentum in atomic orbitals.]]
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	~~<div style="font-size:90%;">Quantization of angular momentum in atomic orbitals.</div>~~
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imported>WikiHarold: Created page with "{{Short description|Quantized angular momentum in atomic systems}} ← Back to Matter by scale '''Angular momentum''' in an atom is a quantized physical quantity associated with the motion and intrinsic properties of an electron. It plays a central role in determining the structure of orbitals and the behavior of electrons in..."

2026-04-27T18:15:13Z

Created page with "{{Short description|Quantized angular momentum in atomic systems}} ← Back to Matter by scale '''Angular momentum''' in an atom is a quantized physical quantity associated with the motion and intrinsic properties of an electron. It plays a central role in determining the structure of orbitals and the behavior of electrons in..."

← Older revision	Revision as of 18:15, 27 April 2026
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imported>WikiHarold: Created page with "{{Short description|Quantized angular momentum in atomic systems}} ← Back to Matter by scale '''Angular momentum''' in an atom is a quantized physical quantity associated with the motion and intrinsic properties of an electron. It plays a central role in determining the structure of orbitals and the behavior of electrons in..."

2026-04-27T18:15:13Z

New page

{{Short description|Quantized angular momentum in atomic systems}}

[[Book:Quantum Collection/Matter (by scale)|← Back to Matter by scale]]

'''Angular momentum''' in an [[Physics:Quantum atoms/atom|atom]] is a quantized physical quantity associated with the motion and intrinsic properties of an [[Physics:Quantum atoms/electron|electron]]. It plays a central role in determining the structure of [[Physics:Quantum atoms/orbital|orbitals]] and the behavior of electrons in atoms.

<div style="float:right; border:1px solid #e0d890; background:#fff8cc; padding:6px; margin:0 0 1em 1em; width:320px;">
[[File:Angular_momentum_quantum.png|300px]]
<div style="font-size:90%;">Quantization of angular momentum in atomic orbitals.</div>
</div>

== Description ==
In quantum mechanics, angular momentum is described by quantum numbers and is restricted to discrete values. It arises in two forms:

* orbital angular momentum, associated with the electron’s motion in an [[Physics:Quantum atoms/orbital|orbital]]
* intrinsic angular momentum, known as [[Physics:Quantum atoms/spin|spin]]

These quantities determine the allowed energy states and spatial distributions of electrons.

== Properties ==

* quantized values
* determines orbital shapes
* linked to [[Physics:Quantum atoms/energy level|energy levels]] and spectra

=See also=
{{#invoke:PhysicsQC|tocHeadingAndList|Physics:Quantum basics/See also}}

=References=
{{reflist|3}}

{{Author|Harold Foppele}}
{{Sourceattribution|Physics:Quantum atoms/angular momentum|1}}