2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/89621At electromagnetic interactions of particles there arises defect of masses, i.e. the energy is liberated since the particles of the different charges are attracted. It is shown that this change of the effective mass of a particle in the external electrical field (of a nucleus) results in displacement of atomic levels of electrons. The expressions describing these velocity changes and displacement of energy levels of electrons in the atom are obtained.LATEX, 5 pages, no figures and tablesQuantum Physicstext