Absorption Spectra of Iron, Cobalt, and Nickel (Classic Reprint) - W F Meggers

Excerpt from Absorption Spectra of Iron, Cobalt, and Nickel
The structure of the nickel arc spectrum has been discussed by Walters (34) and by Bechert and Sommer the term combina tions in Table 5 being taken in large part from these papers but with a revision of the notation. The are spectrum of nickel has three terms which account for all the arc lines identified in absorption; they are 3f, 3d, and 1d in the order of increasing energy, but the first two completely overlap and all three have a range of only slightly more than one-third of a volt in the energy scale. The complete set of low terms is presented in table 6.
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