Standard Atomic Weights Of Commonly Encountered Elements

 

Name Symbol Atomic Number Atomic Weight
Aluminium Al 13 26.982
Antimony Sb 51 121.75
Argon Ar 18 39.948
Arsenic As 33 74.922
Barium Ba 56 137.33
Beryllium Be 4 9.012
Bismuth Bi 83 208.98
Boron B 5 10.81
Bromine Br 35 79.904
Cadmium Cd 48 112.41
Caesium Cs 55 132.91
Calcium Ca 20 40.08
Carbon C 6 12.011
Chlorine Cl 17 35.453
Chromium Cr 24 51.996
Cobalt Co 27 58.933
Copper Cu 29 63.546
Fluorine F 9 18.998
Gallium Ga 31 69.723
Germanium Ge 32 72.59
Gold Au 79 196.97
Hafnium Hf 72 178.49
Helium He 2 4.003
Hydrogen H 1 1.008
Indium In 49 114.82
Iodine I 53 126.9
Iridium Ir 77 192.22
Iron Fe 26 55.847
Krypton Kr 36 83.8
Lead Pb 82 207.2
Lithium Li 3 6.941
Magnesium Mg 12 24.305
Manganese Mn 25 54.938
Mercury Hg 80 200.59
Molybdenum Mo 42 95.94
Neon Ne 10 20.1797
Nickel Ni 28 58.69
Niobium Nb 41 92.906
Nitrogen N 7 14.007
Osmium Os 76 190.2
Oxygen O 8 15.999
Palladium Pd 46 106.42
Phosphorus P 15 30.974
Platinum Pt 78 195.08
Potassium K 19 39.098
Rhodium Rh 45 102.906
Rubidium Rb 37 85.468
Ruthenium Ru 44 101.07
Scandium Sc 21 44.9559
Selenium Se 34 78.96
Silicon Si 14 28.086
Silver Ag 47 107.868
Sodium Na 11 22.99
Strontium Sr 38 87.62
Sulphur S 16 32.06
Tantalum Ta 73 180.948
Thallium Tl 81 204.38
Tin Sn 50 118.69
Titanium Ti 22 47.88
Tungsten W 74 183.85
Uranium U 92 238.029
Vanadium V 23 50.942
Xenon Xe 54 131.293
Yttrium Y 39 88.9059
Zinc Zn 30 65.38
Zirconium Zr 40 91.22