Additional symmetry for the electronic shell in its ground state and many-electron effects
State Institute of Theoretical Physics and Astronomy, A. Gostauto 12, Vilnius 2600, Lithuania
Revised: 17 July 1999
Published online: 15 August 2000
The additional symmetry for the properties related to the ground state of the atom is considered taking into account many-electron effects. Calculations of the binding energies, – system differences and 2p, 3p electron affinities in the second order of perturbation theory and in the configuration interaction approximation have been performed for the ground configurations with one open shell. The analysis of separate many-electron corrections for these quantities and their variation along the sequences of atoms and ions shows that the main corrections maintain the considered symmetry.
PACS: 31.10.+z – Theory of electronic structure, electronic transitions, and chemical binding
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2000