Study of possibilities of calculation of atomic structures by the method of model potential

The possibility of calculation of energy position of individual levels of atomic structures by a model potential method has been shown. Values of ionization potentials of all the Ne levels and energy difference of 1P and 3P terms of 3p53d1Ca(3), Sc(4) configuration, which were calculated by the suggested method are in a good agreement with experimental values. It is shown, that additional accounting of a spherical part of ligand potential in an isolated ion model considerably improves calculation and experiment agreement of values of ionization potentials and Nsub(4,5) fine structure details -lanthanum absorption spectra