This is documentation for Mathematica 7, which was
based on an earlier version of the Wolfram Language.
View current documentation (Version 11.1)

LowerTermFineStructureEnergy

LowerTermFineStructureEnergy[element]
gives a list of {wavelengthv, energy} pairs, where wavelengthv is the wavelength in vacuum and energy is the energy of the fine-structure level in the lower term of the resonance absorption lines produced by element element.
LowerTermFineStructureEnergy[element, ionstage]
gives a list of pairs for the lines of the ionization level ionstage.