Open AccessOn series in the spark spectra of germanium
Publication year - 1928
Publication title -
proceedings of the royal society of london. series a, containing papers of a mathematical and physical character
Language(s) - English
Resource type - Journals
eISSN - 2053-9150
pISSN - 0950-1207
DOI - 10.1098/rspa.1928.0117
Subject(s) - spectral line , germanium , spectrum (functional analysis) , atom (system on chip) , arc (geometry) , series (stratigraphy) , group (periodic table) , table (database) , mathematics , atomic physics , physics , materials science , geometry , computer science , geology , quantum mechanics , metallurgy , paleontology , silicon , embedded system , data mining
Of the spectra of the elements of Group IV of the Periodic Table, that of germanium has been the subject of only a few investigations, probably due to the minute quantities in which the metal is available. Among the earliest measurements of the spectrum were those made by Rowland and Tatnall, Kobb, Exner and Haschek and Eder and Valenta, which were collected by Kayser.* For many years our knowledge of the structure of the spectrum was limited practically to the few constant frequency interval groups pointed out by Paulson among the arc lines. McLennan and McLay identified, with the aid of these groups, a few of the important combination multiplets involving the chief characteristic terms3 - P012 1 D2 1 S0 and3 P1 P of the neutral atom.