This document lists the symbols for various chemical elements, including hydrogen, helium, lithium, carbon, nitrogen, oxygen, fluorine, neon, magnesium, aluminium, silicon, phosphorus, sulfur, chlorine, argon, calcium, manganese, nickel, zinc, bromine, krypton, iodine, barium, xenon, radon, chromium, cobalt, uranium, thorium, radium, sodium, potassium, iron, copper, silver, gold, mercury, lead, and tin.