The diagram represents how carbon atoms are arranged in a giant covalent structure. Which row identifies the substance and states a use for it?
- Adiamond - It is an electrode because electrons can move.
- Bdiamond - It is used as a cutting tool because atoms are strongly bonded together.
- Cgraphite - It is used as an insulator because electrons cannot move.
- Dgraphite - It is a lubricant because atoms can slide over each other.