Argon(Ar) By Micheal Periodic Table Information ● ● ● ● ● ● Nonmetal Atomic number 18 Atomic mass number 39u 18 protons 18 electrons 22 neutrons ● Periodic number 3 ● Group number 18 ● Group name Noble gas Physical and Chemical Properties ● ● ● ● ● ● Colourless, odourless, and tasteless Gas in room temperature Melting point -308.8F Boiling point -302.5F Non-flammable Does not react to any other element ● ● ● The Discovery of Argon By lord Rayleigh and John William Strutt In 1894 Clapham, South London Location of Argon and How to Obtain It ● ● In the earth’s atmosphere By the distillation of liquid air Uses of Argon ● ● ● To inert shielding gas when welding Incandescent light bulbs fluorescent tubes and low-energy light bulbs Work Cited https://www.rsc.org/periodic-table/element/18/argon