Question

why are metals good conductor of electricity

Answer 1

Metals are good conductors of electricity, because they allow electriccharge to flow freely through them. An applied potential difference causes these delocalized electrons to move together, thus an electric current flows through the metal. An electric current can flow freely through a conductor.

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Answer 2

The metals are good conductor of heat because

1) They allow current to flow freely through them...

2) An applied potential difference causes these delocalized electrons to move to move together this an electric current flows through the metal.