Gases At Room Temperature: 11 Elements
Eleven of the chemical elements are gases at room temperature (25 °C or 77 °F). These include hydrogen, helium, nitrogen, oxygen, fluorine, neon, chlorine, argon, krypton, xenon, and radon. Hydrogen and helium are the lightest and most abundant elements in the universe. Nitrogen and oxygen make up almost 99% of the Earth’s atmosphere. Fluorine, neon, … Read more