Rydberg–Ritz combination principle
E629519
The Rydberg–Ritz combination principle is a rule in atomic spectroscopy stating that the frequencies (or wavenumbers) of spectral lines can be expressed as differences between terms in a series, enabling systematic prediction and classification of atomic spectra.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Rydberg–Ritz combination principle canonical | 1 |
Statements (40)
| Predicate | Object |
|---|---|
| instanceOf | physical law ⓘ |
| appliesTo |
absorption spectra
ⓘ
atomic spectra ⓘ emission spectra ⓘ line spectra ⓘ |
| category |
principle of spectroscopy
ⓘ
rule of atomic physics ⓘ |
| concerns |
differences of energy levels expressed as terms
ⓘ
relationships between spectral line frequencies ⓘ |
| enables |
construction of term schemes
ⓘ
identification of regularities in atomic spectra ⓘ prediction of unknown spectral lines ⓘ systematic classification of spectral lines ⓘ |
| epistemicStatus |
empirical law
ⓘ
phenomenological rule ⓘ |
| field |
atomic spectroscopy
ⓘ
optical spectroscopy ⓘ |
| historicalRole |
empirical basis for Bohr’s frequency condition
ⓘ
precursor to quantum theory ⓘ |
| implies | many spectral lines can be generated from a smaller set of terms ⓘ |
| mathematicalForm | ν_ij = T_i − T_j ⓘ |
| namedAfter |
Johannes Rydberg
NERFINISHED
ⓘ
Walther Ritz NERFINISHED ⓘ |
| relatedTo |
Bohr model
NERFINISHED
ⓘ
Rydberg formula NERFINISHED ⓘ quantum theory of the atom ⓘ spectroscopic term system ⓘ |
| statedAs |
spectral line frequency equals difference of two terms
ⓘ
wavenumber of a line equals difference of two term values ⓘ ν = T(m) − T(n) ⓘ |
| supports | term combination patterns in spectroscopy ⓘ |
| usedIn |
analysis of atomic term systems
ⓘ
classification of multiplet structures ⓘ identification of series limits ⓘ |
| usesConcept |
frequency
ⓘ
spectral series ⓘ spectral term ⓘ wavenumber ⓘ |
| validFor |
hydrogen-like spectra
ⓘ
many-electron atoms ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.