Physics:Isotopes of hydrogen - Revision history

Maintenance script: Redirect old hydrogen isotopes title to Quantum Collection title

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Redirect old hydrogen isotopes title to Quantum Collection title

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	~~{{Short description\|Hydrogen isotopes and their quantum relevance}}~~		#REDIRECT [[Physics:Quantum atoms/isotopes of hydrogen]]

	[[~~File~~:~~Blausen 0530 HydrogenIsotopes.png\|thumb\|right\|The three commonly discussed isotopes of hydrogen: protium, deuterium, and tritium.]]~~

	~~'''Isotopes of hydrogen''' are~~ atoms with one proton in the nucleus and different numbers of neutrons. The three named isotopes are '''protium''' (<math>^1\mathrm{H}</math>), '''deuterium''' (<math>^2\mathrm{H}</math> or D), and '''tritium''' (<math>^3\mathrm{H}</math> or T).

	~~Hydrogen isotopes are important in atomic physics because the nucleus affects the reduced mass, hyperfine structure, isotope shifts, and precision spectroscopy of hydrogen-like systems.~~

	~~== Main isotopes ==~~
	~~{\| class="wikitable"~~
	~~! Isotope~~
	~~! Symbol~~
	~~! Nucleus~~
	~~! Stability~~
	~~! Notes~~
	\|-
	~~\| Protium~~
	~~\| <math>^1\mathrm{H}</math>~~
	~~\| one proton~~
	~~\| stable~~
	~~\| Most common hydrogen isotope; no neutron.~~
	\|-
	~~\| Deuterium~~
	~~\| <math>^2\mathrm{H}<~~/~~math> or D~~
	~~\| one proton and one neutron~~
	~~\| stable~~
	~~\| Used in heavy water, isotope labeling, and precision spectroscopy.~~
	\|-
	~~\| Tritium~~
	~~\| <math>^3\mathrm{H}</math> or T~~
	~~\| one proton and two neutrons~~
	~~\| radioactive~~
	~~\| Beta emitter with a half-life of about 12.3 years; used in tracing and fusion research.~~
	\|}

	~~== Quantum effects ==~~
	~~Different hydrogen~~ isotopes ~~have slightly different atomic energy levels because the nuclear mass changes the reduced mass~~ of ~~the electron-nucleus system. These isotope shifts are measured in high-precision spectroscopy.~~

	The nuclear spin also affects hyperfine splitting. Ordinary hydrogen and deuterium have different nuclear spin values, so their hyperfine spectra differ. Tritium is radioactive, but it is still useful in nuclear and atomic physics contexts.

	~~== Related pages ==~~
	* [[Physics:Quantum atoms/hydrogen]]
	* [[Physics:Quantum atoms/energy level]]
	* [[Physics:Quantum Spectral lines and series]]
	* [[Physics:Quantum atomic nucleus]]
	* isotope shifts in atomic spectra

	~~== References ==~~
	~~{{reflist\|3}}~~
	* {{Cite web \|title=Hydrogen \|url=https://www.britannica.com/science/hydrogen \|website=Encyclopaedia Britannica \|access-date=2026-05-23}}
	* {{Cite web \|title=Isotopes of hydrogen \|url=https://www.britannica.com/science/hydrogen/Isotopes-of-hydrogen \|website=Encyclopaedia Britannica \|access-date=2026-05-23}}
	* {{Cite web \|title=Tritium \|url=https://www.epa.gov/radiation/radionuclide-basics-tritium \|publisher=United States Environmental Protection Agency \|access-date=2026-05-23}}

	~~{{Author\|Harold Foppele}}~~

Maintenance script: Remove red link from isotopes page

2026-05-23T10:28:32Z

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	* [[Physics:Quantum Spectral lines and series]]		* [[Physics:Quantum Spectral lines and series]]
	* [[Physics:Quantum atomic nucleus]]		* [[Physics:Quantum atomic nucleus]]
	* ~~[[Physics:Quantum~~ isotope ~~shift]]~~		* isotope shifts in atomic spectra

	== References ==		== References ==

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2026-05-23T10:27:28Z

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-{{Short description|Hydrogen isotopes}}
+{{Short description|Hydrogen isotopes and their quantum relevance}}
-'''Isotopes of hydrogen''' include protium, deuterium, and tritium. They differ by the number of neutrons in the nucleus.
+[[File:Blausen 0530 HydrogenIsotopes.png|thumb|right|The three commonly discussed isotopes of hydrogen: protium, deuterium, and tritium.]]
-{{Sourceattribution|Physics:Isotopes of hydrogen|1}}
+'''Isotopes of hydrogen''' are atoms with one proton in the nucleus and different numbers of neutrons. The three named isotopes are '''protium''' (<math>^1\mathrm{H}</math>), '''deuterium''' (<math>^2\mathrm{H}</math> or D), and '''tritium''' (<math>^3\mathrm{H}</math> or T).

Maintenance script: Repair Book II intro, links, and image slot

2026-05-20T07:40:39Z

Repair Book II intro, links, and image slot

New page

{{Short description|Hydrogen isotopes}}

'''Isotopes of hydrogen''' include protium, deuterium, and tritium. They differ by the number of neutrons in the nucleus.

{{Sourceattribution|Physics:Isotopes of hydrogen|1}}