2.6 Giant covalent structures
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27. What are the two giant covalent structures of carbon described in the syllabus?
Graphite and diamond.
28. Why is graphite used as an electrode?
It has delocalised electrons between its layers that allow it to conduct electricity.
29. Why is diamond used in cutting tools?
It is extremely hard because every carbon atom is bonded to four others in a rigid giant covalent lattice.