Conducts electricity only when molten or dissolved - Ionic, Has weak intermolecular forces and low boiling points - Simple Molecular, Contains strong covalent bonds throughout a 3D network - Giant covalent, Is usually brittle and shatters when struck - Giant Ionic, Has delocalised electrons between positive ions - Metallic, Has delocalised electrons only within layers of atoms - Graphite, Is insoluble in water and has an extremely high melting point - Diamond,

GCSE Chemistry - bonding and structure

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