ELECTRONEGATIVITY AS A FACTOR OF STABILIZATION OF VALENCE STATES IN COMPLEX OXIDES OF p- AND d-ELEMENTS
Journal: Odesa National University Herald Chemistry
Year: 2022

From the thermodynamic standpoint, the stability of valence states in binary and complex oxides of d- and p-metals is considered by the change in the free Gibbs energy in the oxidation-reduction reactions. The presence of a correlation between a valence state of a metal and the electronegativity of its oxide has been established. Thus, metals in the lowest valence state M(II) – (Mn(II), Fe(II), Tl(I), Pb(II)) have low (less than 1.5 еV1/2/O2-) values of electronegativity and reveal predominantly