Engineering Physics Annotation << Back ON THE PROBLEM OF DETERMINING THE DENSITY OF THE METALLIC PHASE OF THE PERIODIC TABLE ELEMENTS F.F. GORBATSEVICH Based on the analysis of the relationship between the metals density and the parameters of atoms, a prediction was made of the density values of metal phase substances of the Periodic Table The densities of substances such as hydrogen, oxygen, nitrogen, fluorine, and others in the metal phase can acquire high values comparable to the densities of metals. The predicted values of the metal phase density of substances can reduce the search for the necessary experimental parameters to obtain such a state. Keywords: atom, metal, volume, density, phase, element, nucleus. DOI: 10.25791/infizik.9.2023.1356 Pp. 37-44.