Multiple choice A metal has to have 3 physical properties to be classified as a metal..... magnetic, poor conductor, brittle high luster, malleable, good conductor break easily, ductile, poor conductor poor conductor, high luster, magnetic Reveal answer Fill a bubble to check yourself B Correct answer Explanation Metals are generally characterized by high luster (shininess), malleability (can be hammered into sheets), and being good conductors of heat and electricity.