Giant Covalent StructuresDescribe the giant covalent structures of graphite and diamondRelate the structures and bonding of graphite and diamond to their uses, limited to: graphite as a lubricant and as an electrode, diamond in cutting toolsDescribe the giant covalent structure of silicon(IV) oxide, SiO2Describe the similarity in properties between diamond and silicon(IV) oxide, related to their structuresMetallic BondingDescribe metallic bonding as the electrostatic attraction between the positive ions in a giant metallic lattice and a 'sea' of delocalised electronsExplain in terms of structure and bonding the properties of metals: good electrical conductivity, malleability, and ductility