James Richard Fromm
Name Symbol Atomic Number Atomic Mass Actinium Ac 89 227.0278 Aluminum(a) Al 13 26.98154 Americium Am 95 (243) Antimony Sb 51 121.75* Argon(b,c) Ar 18 39.948* Arsenic As 33 74.9216 Astatine At 85 (210) Barium(c) Ba 56 137.33 Berkelium Bk 97 (247) Beryllium Be 4 9.01218 Bismuth Bi 83 208.9804 Boron(b,d) B 5 10.81 Bromine Br 35 79.904 Cadmium(c) Cd 48 112.41 Cesium Cs 55 132.9054 Calcium(c) Ca 20 40.08 Californium Cf 98 (251) Carbon(b) C 6 12.011 Cerium(c) Ce 58 140.12 Chlorine Cl 17 35.453 Chromium Cr 24 51.996 Cobalt Co 27 58.9332 Copper(b) Cu 29 63.546* Curium Cm 96 (247) Dysprosium Dy 66 162.50* Einsteinium Es 99 (254) Erbium Er 68 167.26* Europium(c) Eu 63 151.96 Fermium Fm 100 (257) Fluorine F 9 18.998403 Francium Fr 87 (223) Gadolinium(c) Gd 64 157.25* Gallium Ga 31 69.72 Germanium Ge 32 72.59* Gold Au 79 196.9665 Hafnium Hf 72 178.49* Helium(c) He 2 4.00260 Holmium Ho 67 164.9304 Hydrogen(b) H 1 1.0079 Indium(b) In 49 114.82 Iodine I 53 126.9045 Iridium Ir 77 192.22* Iron Fe 26 55.847* Krypton(c,d) Kr 36 83.80 Lanthanum(c) La 57 138.9055* Lawrencium Lr 103 (260) Lead(b,c) Pb 82 207.2 Lithium(b,c,d) Li 3 6.941* Lutetium Lu 71 174.97 Magnesium(c) Mg 12 24.305 Manganese Mn 25 54.9380 Mendelevium Md 101 (258) Mercury Hg 80 200.59* Molybdenum Mo 42 95.94 Neodymium(c) Nd 60 144.24* Neon(d) Ne 10 20.179* Neptunium(a) Np 93 237.0482 Nickel Ni 28 58.70 Niobium Nb 41 92.9064 Nitrogen N 7 14.0067 Nobelium No 102 (259) Osmium(c) Os 76 190.2 Oxygen(b) O 8 15.9994* Palladium(b) Pd 46 106.4 Phosphorus P 15 30.97376 Platinum Pt 78 195.09* Plutonium Pu 94 (244) Polonium Po 84 (209) Potassium K 19 39.0983* Praseodymium Pr 59 140.9077 Promethium Pm 61 (145) Protactinium(a) Pa 91 231.0359 Radium(a,c) Ra 88 226.0254 Radon Rn 86 (222) Rhenium Re 75 186.207 Rhodium Rh 45 102.9055 Rubidium(c) Rb 37 85.4678* Ruthenium(c) Ru 44 101.07* Samarium(c) Sm 62 150.4 Scandium Sc 21 44.9559 Selenium Se 34 78.96* Silicon Si 14 28.0855* Silver(c) Ag 47 107.868 Sodium Na 11 22.98977 Strontium(c) Sr 38 87.62 Sulfur(b) S 16 32.06 Tantalum Ta 73 180.9479* Technetium Tc 43 (97) Tellurium(c,d) Te 52 127.60* Terbium Tb 65 158.9254 Thallium Tl 81 204.37* Thorium(a,c) Th 90 232.0381 Thulium Tm 69 168.9342 Tin Sn 50 118.69* Titanium Ti 22 47.90* Tungsten W 74 183.85* Uranium(c,d) U 92 238.029 Vanadium V 23 50.9414* Xenon(c,d) Xe 54 131.30 Ytterbium Yb 70 173.04* Yttrium Y 39 88.9059 Zinc Zn 30 65.38 Zirconium(c) Zr 40 91.22