metallic, between metals, , contains delocalised electrons and metal cations that are attracted to each other, results in cations, malleable/ductile, high melting, boiling point and conductive, covalent, between non metals, , non-metal atoms share valence electrons, results in no ions, low melting and boiling point, not conductive, chemical names have prefixs (eg dihydrogen dioxide), ionic, between metal and non-metal, , a metal will lose its outside electrons and non-metals will gain these. the two now become negatively and positively charges and so are attracted to each other., results in cations and anions, high melting and boiling point, conductive as a liquid, chemical names do not have prefixs (eg potassium chloride)).

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