How does the structure of atoms in a substance determine the substance’s conductivity?(1 point)

Question

If an atom’s outer shell of electrons is positively charged, the substance is a good conductor.
If an atom’s nucleus is positively charged, the substance is a good conductor.
If an atom’s outer shell of electrons is loosely bound to the nucleus, the substance is a good conductor.
If an atom’s outer shell of electrons is tightly bound to the nucleus, the substance is a good conductor.

Answer 1

If an atom’s outer shell of electrons is loosely bound to the nucleus, the substance is a good conductor.

This is because electrons in the outer shell are more easily able to move and flow freely, carrying an electric charge through the substance. In contrast, if the outer shell of electrons is tightly bound to the nucleus, the electrons are less mobile and conduct electricity poorly.