Abstract
THE deepest term of the separation of doubly ionised arsenic (As III) is 4p 2P1. The values of these doublet terms relative to 2G were reported in a recent paper (Ind. J. Phy., 5, 3, p. 3) to be 220, 221 cm.-1. It was found in the course of this work that a number of lines that could be attributed to doubly ionised arsenic remained unclassified. The spectrum has been further investigated. About fortyfive of these unclassified lines have entered into quartet systems, the terms identified being:
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RAO, A., NARAYAN, A. Spectrum of Doubly Ionised Arsenic. Nature 124, 229 (1929). https://doi.org/10.1038/124229d0
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DOI: https://doi.org/10.1038/124229d0
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