Structure Bonding and Properties metals Metal and non-metal non-metals Metallic Bonds E.g. Ag, Cu or Fe Ionic Bonds E.g. NaCl, K2S, FeO Covalent Bonds E.g. H2O, CO, O2 Properties Malleable Ductile Good Conductors of Heat and Electricity Properties High Melting/Boiling pts. Crystalline solids at room temp Conduct electricity when dissolved or melted. Properties Low melting/boiling points Liquids or gases at room temp Do not conduct electricity when dissolved or melted. Cations are surrounded by a “sea of electrons” The strong electrostatic attraction between oppositely charged ions Electrons are transferred Cations  positive  metals Anions  negative  non-metals Valence electrons are shared (1 bond = 2 electrons) Do not form ions