The wavelengths and energy levels given below are for the isotope 1H.
Although the tabulated energy levels comprise values for each level through n = 5,
we give (Ritz) wavelengths for resolved fine structures only for the Lyman-alpha,
Balmer-alpha, and Balmer-beta lines (1215, 6562, and 4861 Å). As indicated by the
energy-level notations in the persistent-lines table, the other wavelengths represent
unresolved multiplets. These wavelengths are from the corresponding weighted-average
H I Ground State 1s2S1/2
Ionization energy 109678.7717 cm-1 (13.598433 eV) Ref. MK00a