HELP ME PLZ What characteristic of metals makes them good electrical conductors? -They have mobile protons. -They have mobile valence electrons. -Their crystal structures can be rearranged easily. -They have mobile cations.

To have a high electrical conductivity, a normal metal should have mobile valence electrons and a long electron mean free path.

Explanation:

A long mean free path means that the electron goes a long distance between scattering events.

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