CH-311
Structure and properties
Chemistry · Secondary 3 · Medium · Structure and properties
Which statement best explains why graphite can conduct electricity but silicon dioxide cannot?
- Graphite has weak covalent bonds while silicon dioxide has strong covalent bonds.
- Graphite has delocalised electrons that can move, but silicon dioxide has no free electrons.
- Graphite is less dense than silicon dioxide so electrons move more easily.
- Graphite is made of ions while silicon dioxide is made of molecules.
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