Hydrogen H 16 Helium He ~ Lithium Li Beryllium Be 10 Boron B Carbon C Nitrogen N Oxygen O Fluorine F Neon Ne ~ Sodium Na Magnesium Mg 10 Aluminum Al Silicon Si Phosphorus P Sulfur S Chlorine Cl Argon Ar ~ Potassium K Calcium Ca Scandium Sc Titanium Ti Vanadium V Chromium Cr Manganese Mn Iron Fe Cobalt Co Nickel Ni Copper Cu Zinc Zn Gallium Ga Germanium Ge Arsenic As Selenium Se Bromine Br Krypton Kr ~ Rubidium Rb Strontium Sr Yttrium Y Zirconium Zr Niobium Nb Molybdenum Mo Technetium Tc Ruthenium Ru Rhodium Rh Palladium Pd Silver Ag Cadmium Cd Indium In Tin Sn Antimony Sb Tellurium Te Iodine I Xenon Xe ~ Cesium Cs Barium Ba * Hafnium Hf Tantalum Ta Tungsten W Rhenium Re Osmium Os Iridium Ir Platinum Pt Gold Au Mercury Hg Thallium Tl Lead Pb Bismuth Bi Polonium Po Astatine At Radon Rn ~ Francium Fr Radium Ra * Rutherfordium Rf Dubnium Db Seaborgium Sg Bohrium Bh Hassium Hs Meitnerium Mt Darmstadtium Ds Roentgenium Rg Ununbium Uub Ununtrium Uut Ununquadium Uuq Ununpentium Uup Ununhexium Uuh Ununseptium Uus Ununoctium Uuo ~ ~ 3 Lanthanum La Cerium Ce Praseodymium Pr Neodymium Nd Promethium Pm Samarium Sm Europium Eu Gadolinium Gd Terbium Tb Dysprosium Dy Holmium Ho Erbium Er Thulium Tm Ytterbium Yb Lutetium Lu ~ 3 Actinium Ac Thorium Th Protactinium Pa Uranium U Neptunium Np Plutonium Pu Americium Am Curium Cm Berkelium Bk Californium Cf Einsteinium Es Fermium Fm Mendelevium Md Nobelium No Lawrencium Lr