Why are metals good conductors of electricity?
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Electric current is the flow of electrons in a wire. In metals, the outer electrons of the atoms belong to a 'cloud' of delocalised electrons. They are no longer firmly held by a specific atom, but instead they can move freely through the lattice of positive metal ions. ... Metals are good conductors of heat.
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Metals have free electrons. These free electrons can easily move through the metal surface and conduct electricity.
Therefore metals are good conductors of electricity.
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