Answer is: Nonmetals - noble gases (group 18).
This question is not complete, because some nonmetals are solid (carbon, sulfur) and liquid (bromine) at room temperature.
The nonmetals are divided into two categories: reactive nonmetals and noble gases.
Noble gases are in group 18: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe) and radon (Rn). They have very low chemical reactivity.
