Answer: The 3 categories are Metals, Nonmetals, and Metalloids.
Metals: "Good conductors of heat, malleable, ductile, shiny, few electrons in outer energy level Good conductors of heat, malleable, ductile, shiny, few electrons in outer energy level."
Nonmetals:"Poor conductors of heat, not malleable or ductile, not shiny, almost complete set of electrons in outer energy level."
Metalloids: "Also called semiconductors have properties of both."
Happy studying ^-^
Explanation:
