Abstract
In a former paper an account was given of an investigation of the spectrum of neutral fluorine obtained by passing discharges through vacuum tubes containing silicon tetrafluoride. The observations have now been extended farther into the infra-red, and a number of new lines observed. The additional data have enabled the spectrum to be analysed more thoroughly than was previously possible, and a more complete correlation with the scheme of terms predicted by the Heisenberg-Hund theory has been established. The observations of Bowen in the extreme ultra-violet have been of great assistance in the analysis, and have led to a slight modification of the term-assignments tentatively suggested in the former paper.
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10 articles.
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