Rydberg constant
E160621
The Rydberg constant is a fundamental physical constant that characterizes the limiting value of the highest wavenumber (or lowest wavelength) of any photon that can be emitted from the hydrogen atom, playing a key role in atomic spectroscopy and quantum theory.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Rydberg constant canonical | 11 |
| Rydberg frequency | 2 |
| R_H includes reduced mass correction for hydrogen nucleus | 1 |
| Rydberg formula for hydrogen spectral lines | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1403710 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Rydberg constant Context triple: [CODATA recommended values of the fundamental physical constants, includesConstant, Rydberg constant]
-
A.
Planck constant
The Planck constant is a fundamental physical constant that quantifies the relationship between the energy of a photon and the frequency of its associated electromagnetic wave, forming a cornerstone of quantum mechanics.
-
B.
Fermi constant
The Fermi constant is a fundamental physical constant that quantifies the strength of the weak nuclear force in processes such as beta decay.
-
C.
Boltzmann constant
The Boltzmann constant is a fundamental physical constant that links temperature to energy at the particle level, playing a central role in statistical mechanics and thermodynamics.
-
D.
CODATA recommended values of the fundamental physical constants
The CODATA recommended values of the fundamental physical constants are internationally standardized, periodically updated numerical values for key physical constants used to ensure consistency and precision in scientific and technological calculations.
-
E.
Huang–Rhys factor
The Huang–Rhys factor is a dimensionless parameter in solid-state and molecular spectroscopy that quantifies the strength of electron–phonon (vibronic) coupling during electronic transitions.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Rydberg constant Target entity description: The Rydberg constant is a fundamental physical constant that characterizes the limiting value of the highest wavenumber (or lowest wavelength) of any photon that can be emitted from the hydrogen atom, playing a key role in atomic spectroscopy and quantum theory.
-
A.
Planck constant
The Planck constant is a fundamental physical constant that quantifies the relationship between the energy of a photon and the frequency of its associated electromagnetic wave, forming a cornerstone of quantum mechanics.
-
B.
Fermi constant
The Fermi constant is a fundamental physical constant that quantifies the strength of the weak nuclear force in processes such as beta decay.
-
C.
Boltzmann constant
The Boltzmann constant is a fundamental physical constant that links temperature to energy at the particle level, playing a central role in statistical mechanics and thermodynamics.
-
D.
CODATA recommended values of the fundamental physical constants
The CODATA recommended values of the fundamental physical constants are internationally standardized, periodically updated numerical values for key physical constants used to ensure consistency and precision in scientific and technological calculations.
-
E.
Huang–Rhys factor
The Huang–Rhys factor is a dimensionless parameter in solid-state and molecular spectroscopy that quantifies the strength of electron–phonon (vibronic) coupling during electronic transitions.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
fundamental constant
ⓘ
physical constant ⓘ spectroscopic constant ⓘ |
| appearsIn | Rydberg–Ritz combination principle ⓘ |
| appearsInEquation | 1/λ = R∞ (1/n₁² − 1/n₂²) ⓘ |
| appliesTo | hydrogen atom ⓘ |
| characterizes |
highest wavenumber of photons emitted from hydrogen
ⓘ
limiting wavenumber of spectral lines ⓘ lowest wavelength of photons emitted from hydrogen ⓘ |
| CODATADesignation | Rydberg constant for infinite nuclear mass ⓘ |
| definedFor | infinitely heavy nucleus limit ⓘ |
| dependsOn |
Planck constant
ⓘ
electron mass ⓘ elementary charge ⓘ speed of light in vacuum ⓘ |
| dimension | inverse length ⓘ |
| discoveredBy | Johannes Rydberg ⓘ |
| field |
atomic physics
ⓘ
quantum mechanics ⓘ spectroscopy ⓘ |
| governs | spacing of hydrogen spectral lines ⓘ |
| hasApproximateValue | 10973731.568160 m⁻¹ ⓘ |
| hasUncertainty | on the order of 10⁻⁵ m⁻¹ ⓘ |
| hasVariant |
Rydberg constant for deuterium
ⓘ
Rydberg constant for hydrogen ⓘ |
| isOneOf | most accurately determined physical constants ⓘ |
| namedAfter | Johannes Rydberg ⓘ |
| quantityType | wavenumber ⓘ |
| relatedConstant |
Rydberg energy
ⓘ
Rydberg frequency ⓘ
linked to:
Rydberg constant
|
| relatedTo |
Bohr radius
ⓘ
energy levels of hydrogen ⓘ fine-structure constant ⓘ |
| relatesTo |
Balmer series
ⓘ
linked to:
Balmer series of hydrogen
Lyman series ⓘ
linked to:
Lyman series in hydrogen spectrum
Paschen series ⓘ hydrogen emission spectrum ⓘ |
| SIUnit | per metre ⓘ |
| symbol | R∞ ⓘ |
| usedFor |
determining other fundamental constants
ⓘ
high-precision spectroscopy of hydrogen ⓘ testing quantum electrodynamics ⓘ |
| usedIn |
Bohr model of the atom
ⓘ
Rydberg formula ⓘ atomic spectroscopy ⓘ quantum theory ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Rydberg constant Description of subject: The Rydberg constant is a fundamental physical constant that characterizes the limiting value of the highest wavenumber (or lowest wavelength) of any photon that can be emitted from the hydrogen atom, playing a key role in atomic spectroscopy and quantum theory.
Referenced by (15)
Full triples — surface form annotated when it differs from this entity's canonical label.
CODATA recommended values of the fundamental physical constants
→
includesConstant
→
Rydberg constant
ⓘ
linked to: Rydberg constant
linked to: Rydberg constant
subject linked to:
Rydberg atoms
linked to: Rydberg constant
linked to: Rydberg constant