The 29 and 30—Electron-System Spectra of Arsenic and Selenium
- 1 October 1928
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 32 (4) , 583-592
- https://doi.org/10.1103/physrev.32.583
Abstract
New vacuum-spark data in the extreme ultra-violet have been obtained for arsenic and selenium. By aid of previous classificationsin the 29 and 30—electron-system spectra of copper, zinc, gallium and germanium, it has been possible by extrapolation of the Moseley diagram, the irregular doublet law, screening constant data and the triplet interval ratios to predict the location of and to identify the lines arising from transitions between the lowest levels in the spectra of As IV, As V, Se V and Se VI. The ionization potential of As V is determined as 62.4 volts, that of Se VI as 81.4 volts.Keywords
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