Diamond is very hard and is a poor conductor of electricity. Which statement accounts for these properties?
- AIt has a lattice of positive carbon ions in a 'sea of electrons'.
- BIt has delocalised electrons and each carbon atom forms three covalent bonds with other carbon atoms.
- CIt has no delocalised electrons and each carbon atom forms four covalent bonds with other carbon atoms.
- DIt has strong ionic bonds between each carbon atom.