Multiple choice

Why can graphite conduct electricity?

  1. There are carbon atoms

  2. There are covalent bonds

  3. The layers can slide over each other

  4. There are delocalised electrons which can carry charge
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In graphite, each carbon atom is bonded to three others, leaving one electron per atom delocalized. These free electrons are able to move throughout the structure and carry an electrical current.

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