This article is the eighth part of the scientific project under the general title "Geometrized Vacuum Physics Based on the Algebra of Signature" [1,2,3,4,5,6,7]. In this article, are proposed metric-dynamic models of "electron" and "positron", which move with constant speed relative to vacuum, stable curvatures of which they themselves are. It is shown that the obtained results are applicable to all "baryons" and "mesons" included in the Standard Model of ele-mentary particles. Model concepts of induction of toroidal-helical vortices around the direction of motion of "parti-cles" and "antiparticles" made it possible to give a completely geometrized explanation of such phenomena as the motion of atomic bodies by inertia (without involving the concept of mass), inertial electric current and inertial elec-tromagnetic field. Like the entire project, this research is aimed at a partial implementation of the Clifford-Einstein-Wheeler program of complete geometrization of physics.