THE SPECTRUM OF DOUBLY IONIZED MERCURY, Hg III

Abstract

The spectrum of mercury, excited in an electrodeless discharge, has been measured from 400 to 11,000 Å. From these data the analysis of Hg III has been extended to include 77 new terms of the configurations 5d 8 6s 2 , 5d 8 6s6p, 5d 9 7s, 5d 9 8s, 5d 9 7p, 5d 9 6d, 5d 9 7d, 5d 9 5f, and seven unidentified even terms Isotope shifts have been observed in 11 lines and confirm the classifications of these lines.