Quasiclassical model of ion shell structure

An effective potential of the nl-electrons in atoms or ions obtained from the well-known screened hydrogenlike potential model is used to calculate ionization energies in the quasiclassical approximation. The method is suitable for the inner and outer shells of the ground and excited states. We consider here the outer shells of the lighter element ions. The approach yields good results for multicharged ions as well as for the weakly ionized s subshells and for less-than-half-filled p subshells. 18 refs., 1 fig., 2 tabs