Why are metals considered to be good conductors?

Question

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Answer 1

Metals are considered to be good conductors of electricity because of their unique chemical structure. In metals, atoms are held together by a sea of free electrons that are able to move freely throughout the material. When a voltage is applied to a metal, these free electrons are able to flow easily, allowing electricity to conduct through the material. This high mobility of electrons in metals is what makes them such efficient conductors of electricity. Additionally, metals also have a high thermal conductivity, meaning they are able to efficiently transfer heat as well.