4. Germanium forms a substitutional solid solution with silicon. Compute the number of germanium atoms per cubic centimeter for a germanium-silicon alloy that contains 15 wt\% Ge and 85 wt\% Si. The densities of pure germanium and silicon are 5.32 and 2.33g/cm3, respectively. 4. Germanium forms a substitutional solid solution with silicon. Compute the number of germanium atoms per cubic centimeter for a germanium-silicon alloy that contains 15 wt\% Ge and 85 wt\% Si. The densities of pure germanium and silicon are 5.32 and 2.33g/cm3, respectively