00-09U

Investigation of the temperature dependence of the effective two-particle potential of the interaction in the frame of the electron-ion model of a metal has been done. Considering the two- and three-particle correlations, we have calculated the effective two-particle potential of the interaction for the metallic phase of $H$, a set of the simple metals: $Li$, $Na$, $K$, $Rb$, $Mg$. All calculations have been done in the local-field approximation.