Spectrograms of As electrodeless-discharge tubes operated in a field of 24 025 G have given Zeeman patterns for 232 As ii spectral lines from 2361 to 10 556 Å and yielded 80 Landé g factors, of which more than half are new. There is agreement between these and the g values calculated by least-squares fitting for single configurations or for multiconfigurations, where configuration interaction is noticeable. All of the measured g values as well as the energy levels are used in the fitting process. However, in the case of one multiconfiguration group, 4s4p3–4p4d–4p5d–4p6d–4p7s, the experimental material does not agree with calculated results unless LS-dependent parameters are used in the least-squares calculations.
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