Eleven non-metals are gases at room temperature, including oxygen and chlorine. One non-metal, bromine, is a liquid at room temperature. The other non-metals are solids at room temperature, including carbon and sulfur.
All the elements are solids at 25 deg Celsius except mercury (Hg) and bromine (Br) that are liquids and hydrogen (H), nitrogen (N), oxygen (O), fluorine (F), chlorine (Cl), and the Noble gases in Family 18 that are gases.
