Abstract
The radial integrals for transitions of 6 p-electrons to the excited states in the Tl, Pb and Bi atoms have been found by numerical integration of the Dirac equation with an effective potential. The radial integrals for excitation of 6 s- and 5 d-electrons from the closed subshells have been obtained from analysis of the available experimental data on the oscillator strengths in Tl, Hg, Au and the polarizability of Hg. Using these radial integrals, we determine the polarizabilities of the Tl, Pb and Bi atoms by a simple method that is similar to Sternheimer's method.
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