Question

a conductor is a material through which electrons can flow freely. an insulator is a material that resists the flow of electrons. which of the following is an example of a good insulator? a. glass b. silver c. gold

Explanation:

Conductors (like silver, gold) allow easy electron flow. Insulators resist electron flow. Glass is a non - metal, non - conductive material, so it's a good insulator. Silver and gold are metals, hence good conductors.

Answer:

A. glass