CH-315
Simple molecular structures
Chemistry · Secondary 3 · Medium · Simple molecular structures
In graphite, each carbon atom is covalently bonded to three other carbon atoms. Which statement best explains why graphite conducts electricity but silicon dioxide does not?
- Graphite has delocalised electrons that can move, but silicon dioxide has none.
- Graphite is made of ions, while silicon dioxide is made of molecules.
- Graphite has weak covalent bonds, but silicon dioxide has strong covalent bonds.
- Graphite has more protons than silicon dioxide, so charges can move easily.
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