Abstract
DR. H. SPONER, in an article published some time ago (Zeit. f. Phys., vol. 34, p. 622; 1925), advanced the hypothesis that active nitrogen is simply an atom of nitrogen, basing her argument on the parallel properties of active nitrogen and active hydrogen. The hypothesis seems to have found favour with many physicists. Now it is known that active hydrogen shows Balmer lines strongly, and if active nitrogen is also atomic in structure, this may also show the lines of atomic nitrogen. In order to test this point we have photographed the spectrum of active nitrogen in the near infra-red, after an exposure of 42 hours on neocyanine plates. A new band system, extending from 7500 A. to 8900 A., has been discovered. The well-known group of lines of atomic nitrogen discovered by C. C. Kiess (J.O.S.A., vol. 11) about the region 8200 A. is absent, though the exposure was long enough to photograph a weaker band in the vicinity.
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KICHLU, P., ACHARYA, D. Active Nitrogen. Nature 121, 982–983 (1928). https://doi.org/10.1038/121982b0
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DOI: https://doi.org/10.1038/121982b0
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