ON THE 1S(2)4D FINE-STRUCTURES OF B-III AND NE-VII

The fine structure of lithium-like 1s(2)4d states in the literature be haves irregularly as a function of Z. The fine structures of the B III and Ne VIII fall well below the isoelectronic curve. The term energie s of these two systems in the data tables also give worse agreement wi th the theoretical prediction. In this work, we show that the reason f or this unusual situation is caused by a misidentification in the orig inal spectra. When the correct identifications are made, the fine stru ctures of both systems fall on the isoelectronic curve and the agreeme nt between theory and experiment is excellent.