Final answer:
Metals are found on the left of the periodic table and are lustrous and good conductors, nonmetals are on the upper right and are dull and poor conductors, and metalloids are found in a diagonal band displaying intermediate properties.
Step-by-step explanation:
Metals, nonmetals, and metalloids are each located in distinct parts of the periodic table. Metals are generally found on the left side of the periodic table. They are characterized as being lustrous, malleable, ductile, and excellent conductors of electricity and heat. In contrast, nonmetals are commonly found on the upper right side and are typically dull in appearance, brittle when solid, and poor conductors of heat and electricity. Between these groups, in a diagonal band, are the metalloids, which display properties intermediate between those of metals and nonmetals. These elements are located adjacent to a zigzag line on the right-hand side of the table, which separates the metals from the nonmetals.