oxides: Binary compounds formedbetween elements and oxygen. Oxidesof nonmetals are covalent compoundshaving simple molecules (e.g.CO, CO2, SO2) or giant molecular lattices(e.g. SiO2). They are typicallyacidic or neutral. Oxides of metalsare ionic, containing the O2- ion.They are generally basic or amphoteric.Various other types of ionicoxide exist.
