Paschen series
E632344
The Paschen series is a set of spectral lines in the infrared region of the hydrogen atom’s emission spectrum corresponding to electron transitions ending at the n=3 energy level.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Paschen series canonical | 2 |
| Paschen series of hydrogen | 1 |
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
hydrogen spectral series
ⓘ
spectral line series ⓘ |
| alsoKnownAs | infrared series of hydrogen ⓘ |
| appliesTo |
atomic hydrogen
ⓘ
hydrogen-like ions (approximate) ⓘ |
| associatedWith | hydrogen atom ⓘ |
| category | atomic spectroscopy ⓘ |
| describes | electron transitions ending at n=3 in hydrogen ⓘ |
| discoveredBy | Friedrich Paschen NERFINISHED ⓘ |
| discoveryYear | 1908 ⓘ |
| electromagneticRegion | infrared ⓘ |
| energyLevelModel | Bohr model of hydrogen NERFINISHED ⓘ |
| finalPrincipalQuantumNumber | 3 ⓘ |
| firstLineTransition | n=4 to n=3 ⓘ |
| formula | 1/λ = R_H (1/3² − 1/n²), n>3 ⓘ |
| generalTransition | n>3 to n=3 ⓘ |
| hasLineDesignation |
Paα
ⓘ
Paβ ⓘ Paγ ⓘ |
| longestWavelengthApprox | 1875 nm ⓘ |
| namedAfter | Friedrich Paschen NERFINISHED ⓘ |
| occursWhen | electron relaxes to n=3 level ⓘ |
| partOf | hydrogen emission spectrum ⓘ |
| PaαTransition | n=4 to n=3 ⓘ |
| PaβTransition | n=5 to n=3 ⓘ |
| PaγTransition | n=6 to n=3 ⓘ |
| photonType | infrared photon emission ⓘ |
| quantumNumberChange | Δn ≥ 1 ⓘ |
| relatedTo |
Balmer series
NERFINISHED
ⓘ
Brackett series NERFINISHED ⓘ Humphreys series NERFINISHED ⓘ Lyman series NERFINISHED ⓘ Pfund series NERFINISHED ⓘ |
| secondLineTransition | n=5 to n=3 ⓘ |
| selectionRule | Δl = ±1 ⓘ |
| shortestWavelengthApprox | 820 nm ⓘ |
| shortestWavelengthLimit | Paschen limit NERFINISHED ⓘ |
| shortestWavelengthTransitionLimit | n=∞ to n=3 ⓘ |
| thirdLineTransition | n=6 to n=3 ⓘ |
| transitionType | emission ⓘ |
| usedIn |
astrophysical spectroscopy
ⓘ
plasma diagnostics ⓘ stellar atmosphere studies ⓘ |
| usesRydbergConstant | R_H ⓘ |
| wavelengthRange |
mid infrared
ⓘ
near infrared ⓘ |
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Paschen series of hydrogen