A set of levels which have the same @C01248@ and the same value of the quantum numbers for total spin \(S\) and total orbital @A00353@ \(L\).
Source: PAC, 1991, 63, 735. (Nomenclature, symbols, units and their usage in spectrochemical analysis - VIII. Nomenclature system for X-ray spectroscopy (Recommendations 1991)) on page 737 [Terms] [Paper]
Citation: 'term' in IUPAC Compendium of Chemical Terminology, 3rd ed. International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. https://doi.org/10.1351/goldbook.T06273 RISBibTexEndNote