The different substances, salts, metals, and acids are all conductors of electricity but the charge carriers are different in metals compared to salts and acids.
In metals, the charge carriers are electrons while in salts and acids, the charge carriers are ions.
Metals are very good conductors of electricity. They are better conductors of electricity than salt and acid solutions.
A metal conducts electricity in the solid state but salts and acids only conduct electricity in solution.
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