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The Second Spark Spectrum of Tellurium

Naturevolume 134page255 (1934) | Download Citation



THE are and the spark spectra of tellurium, extending over the wide region between 7000 and 450 have been under investigation by me for the last two years under varying experimental conditions. Very useful data of the spectrum, especially in the vacuum region, have also been kindly made available to me by Dr. K. R. Rao and Prof. R. J. Lang. With the aid of these, the analysis of the very complicated second spark spectrum of tellurium has been elucidated. It is found that the fundamental intervals 5p3P0 – 5p3P1, 5p3P1 – 5p3P2, and 5p3P2 – 5p D12 are respectively 4,751, 3,410 and 9,198 cm.1. The terms ms3P having a total separation of 7,952 cm. in the first number are gradually tending to their limiting value 9,227 cm.1 of Te IV1. The terms of the 6p state are generally in consonance with the corresponding terms of Se III2. The third ionisation potential of tellurium, as calculated from the above analysis, is about 29.5 volts. The complete analysis is being communicated to the Royal Society of London.

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  1. 1

    K. R. Rao, Proc. Roy. Soc., A, 133, 220 ; 1931.

  2. 2

    K. R. Rao and S. G. Krishnamurty, Proc. Roy. Soc., A (in press).

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  1. Science College, Andhra University, Waltair, India



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