Atomic characteristics of lanthanoidеs and actinoidеs

For two groups of homologues, lanthanoidеs and actinoidеs, the available experimental and theoretical data on static polarizability, atomic volumes and ionization potentials necessary for numerical simulation of various problems of chemistry and physics, in particular, nuclear power projects, are considered. The connections of these characteristics with each other established in a quasi-classical approximation have been checked, and their dependencies on the atomic number have been investigated. It is shown that with the sequential hydrogen-like filling of the electron f-shells, this dependence is regular in both groups, which makes it possible to obtain simple fairly accurate approximations of the studied quantities, as well as to estimate the atomic volumes of heavy actinides, for which data are not available.