Study of the energy level structure for the isoelectronic series of scandium-like ions

The structure of the energy level system for 39 ions of the scandium isoelectronic sequence is studied on the basis of the relativistic self-consistent field method taking into account the configuration interaction. The Dirac-Fock equations are solved with subsequent diagonalization of the energy matrix. The ground-state ionization potentials are determined for each ion. The energy levels corresponding to the 3d4s ², 3d ²4s, and 3d ₃ configurations are also calculated. The obtained energy values are compared with the experimental data as well as with the results of calculations carried out by other authors.