Physics:Quantum Selection rules - Revision history

Maintenance script: Normalize quantum page header order

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	'''Selection rules''' ~~is a Book I topic in the Quantum Collection. Selection~~ rules in quantum mechanics determine which transitions between quantum states are allowed or forbidden when an atom interacts with electromagnetic radiation. These rules arise from symmetry properties of the system and the structure of the interaction Hamiltonian. In atomic spectroscopy, the dominant mechanism is the electric dipole (E1) transition, which governs most observed spectral lines. Selection rules in quantum mechanics determine which transitions between quantum states are allowed or forbidden when an atom interacts with electromagnetic radiation. These rules arise from symmetry properties of the system and the structure of the interaction Hamiltonian. In atomic spectroscopy, the dominant mechanism is the electric dipole (E1) transition, which governs most observed spectral lines.		'''Selection rules''' selection rules in quantum mechanics determine which transitions between quantum states are allowed or forbidden when an atom interacts with electromagnetic radiation. These rules arise from symmetry properties of the system and the structure of the interaction Hamiltonian. In atomic spectroscopy, the dominant mechanism is the electric dipole (E1) transition, which governs most observed spectral lines. Selection rules in quantum mechanics determine which transitions between quantum states are allowed or forbidden when an atom interacts with electromagnetic radiation. These rules arise from symmetry properties of the system and the structure of the interaction Hamiltonian. In atomic spectroscopy, the dominant mechanism is the electric dipole (E1) transition, which governs most observed spectral lines. For electric dipole transitions, the allowed changes in quantum numbers are:
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	'''Selection rules''' in quantum mechanics determine which transitions between quantum states are allowed or forbidden when an atom interacts with electromagnetic radiation. These rules arise from symmetry properties of the system and the structure of the interaction Hamiltonian.~~<ref>[https://chem~~.~~libretexts~~.~~org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Supplemental_Modules_%28Physical_and_Theoretical_Chemistry%29/Spectroscopy/Fundamentals_of_Spectroscopy/Selection_rules Selection~~ rules ~~– LibreTexts]</ref>~~		'''Selection rules''' is a Book I topic in the Quantum Collection. Selection rules in quantum mechanics determine which transitions between quantum states are allowed or forbidden when an atom interacts with electromagnetic radiation. These rules arise from symmetry properties of the system and the structure of the interaction Hamiltonian. In atomic spectroscopy, the dominant mechanism is the electric dipole (E1) transition, which governs most observed spectral lines. Selection rules in quantum mechanics determine which transitions between quantum states are allowed or forbidden when an atom interacts with electromagnetic radiation. These rules arise from symmetry properties of the system and the structure of the interaction Hamiltonian. In atomic spectroscopy, the dominant mechanism is the electric dipole (E1) transition, which governs most observed spectral lines.

	In atomic spectroscopy, the dominant mechanism is the ~~'''~~electric dipole (E1) transition~~'''~~, which governs most observed spectral lines.
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			{{Short description\|Quantum Collection topic on Quantum Selection rules}}

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	'''Selection rules''' in quantum mechanics determine which transitions between quantum states are allowed or forbidden when an atom interacts with electromagnetic radiation. These rules arise from symmetry properties of the system and the structure of the interaction Hamiltonian.<ref>[https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Supplemental_Modules_%28Physical_and_Theoretical_Chemistry%29/Spectroscopy/Fundamentals_of_Spectroscopy/Selection_rules Selection rules – LibreTexts]</ref>		'''Selection rules''' in quantum mechanics determine which transitions between quantum states are allowed or forbidden when an atom interacts with electromagnetic radiation. These rules arise from symmetry properties of the system and the structure of the interaction Hamiltonian.<ref>[https://chem.libretexts.org/Bookshelves/Physical_and_Theoretical_Chemistry_Textbook_Maps/Supplemental_Modules_%28Physical_and_Theoretical_Chemistry%29/Spectroscopy/Fundamentals_of_Spectroscopy/Selection_rules Selection rules – LibreTexts]</ref>

	In atomic spectroscopy, the dominant mechanism is the '''electric dipole (E1) transition''', which governs most observed spectral lines.		In atomic spectroscopy, the dominant mechanism is the '''electric dipole (E1) transition''', which governs most observed spectral lines.
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			[[File:Quantum_selection_rules_E1_atomic_transitions.jpg\|thumb\|280px\|Quantum Selection rules.]]
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	[[File:Quantum_selection_rules_E1_atomic_transitions.jpg\|thumb\|400px\|Electric dipole (E1) selection rules for atomic transitions: Δℓ = ±1, Δm = 0, ±1, with Δn unrestricted. Forbidden transitions include Δℓ = 0 and Δm ≠ 0, ±1.]]		</div>

	== Electric dipole (E1) selection rules ==		== Electric dipole (E1) selection rules ==

imported>WikiHarold: Repair Quantum Collection B backlink template

2026-05-08T19:51:52Z

Repair Quantum Collection B backlink template

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	{{Quantum article nav\|previous=Physics:Quantum Spectral lines and series\|previous label=Spectral lines and series\|next=Physics:Quantum Fermi's golden rule\|next label=Fermi's golden rule}}		{{Quantum article nav\|previous=Physics:Quantum Spectral lines and series\|previous label=Spectral lines and series\|next=Physics:Quantum Fermi's golden rule\|next label=Fermi's golden rule}}