Guseinov, Israfil IsaErtürk, M.2025-01-272025-01-2720090340-6253https://hdl.handle.net/20.500.12428/13577We investigate the efficiency of noninteger n-generalized exponential type orbitais in energy calculations of isoelectronic series of atoms from Be to Ne and K [Ar]4s03d1 (2D) and Cr+ [Ar]4s03d5 (6S) using combined Hartree-Fock-Roothaan theory. The results of calculations are compared with the values obtained in literature. AU of the nonlinear parameters are fully optimized. It is shown that the use of noninteger n-generalized exponential type orbitais in atomic electronic structure calculations gives the superior agreement with numerical Hartree-Fock calculations. The minimum energy error, which is 0.00204432 Hartree, is observed for the neutral Be atom with respect to corresponding numerical Hartree-Fock result.eninfo:eu-repo/semantics/closedAccessArticle6136036132-s2.0-67249094961Q1