Abstract
THE analysis of the spectra Se IV and Se V has been reported by us in a previous paper.1 The experimental data described there have led further to the identification of a system of energy-levels characteristic of the spectrum of doubly-ionised selenium. Combinations between the deepest terms 4s24p2, 3P, 1D and the terms 4s24p5s 3P, 1P have been established by comparison with the spectra of Ge I and As II (unpublished data by K. R. Rao). About two hundred lines belonging to the spectrum have entered into the scheme. The 4s24p2 term-differences are 3P0 − 3P1 = 1740, 3P1 − 3P2 = 2196, 3P2 − 1D2 = 9095, the 4s24p5s differences are 3P0 − 3P1 = 504, 3P1 − 3P2 = 3610, 3P2 − 1p0 = 1265, and 4s24P2 3P2 − 4S24P5S 3P2 = νl26454(λ = 790.80).
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Proc. Roy. Soc., vol.131, p. 154; 1931.
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BADAMI, J., RAO, K. The Structure of the Spectrum Se III. Nature 128, 496 (1931). https://doi.org/10.1038/128496c0
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DOI: https://doi.org/10.1038/128496c0
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