Step-by-step explanation:
Metals:
Metals are substances that have a high heat conductivity, low ionization, and have high electrical conductivity. Examples of these metals are tin, copper, and zinc.
Nonmetals:
Nonmetals are substances that have low heat conductivity, high ionization, and low electrical conductivity. Examples of these are hydrogen, oxygen, and carbon.
Metalloids:
Metalloids are substances that have properties that fall between metals and nonmetals. They have intermediate heat conductivity, varying ionization, and have an intermediate electrical conductivity. Examples of these are boron, silicon, and arsenic.