Assessment of the ionic radii of the hypothetical heaviest elements of theperiodic table by the methods of information theory

In the framework of the concept of information flow exchange by microsystem s (atoms, ions, molecules) in formation of a chemical bond, an equation is proposed demonstrating that the ratio between the size and the structure of microsystems corresponds to the condition of the maximal transmittivity in chemical communication channels. Using this equation, the change in the tr ansmittivity in ionic-covalent chemical channels is studied. A corresponden ce between the systematics of the ionic radii of the elements of the period ic table and the conclusions from the relativistic model of a multielectron atom is established. The existence of electrodynamically stable "superheav y" elements (SHEs) with Z > 137 is assumed. The ionic radii in accordance w ith the Shannon and Prewitt's systematics are estimated for a number of "li ght" SHEs.