VSEPR Lab

There are four types of solids: Covalent-network which are joined by an extensive network of covalent bonds, molecular which discrete molecules that are linked together by van der Waals forces, ionic which are cations and anions attracted to each other, and metallic which share a network of highly delocalized electrons. We used melting points, solubility, and electrical resistance as the defining properties. I would predict that citric acid was an ionic solid, zinc was metallic, charcoal was molecular, CaCl2 was covalent network, and sand was also metallic. Citric acid is a molecular solid, Zinc is a metallic solid, charcoal is a covalent-network, CaCl2 is ionic, and sand is also molecular.