Scandium is a metal because it is in the transition metals section of the Periodic Table. The nonmetals are located near the right of the periodic table and the metalloids are … right next to them between the metal and nonmetals. There are only few metalloids.6 people found this useful.ead is a poor metal and (or) a metalloid: it has some amphoteric properties as well, like bismuth or arsenic. It has some fine metallic properties though. 10 people found this useful.