Pre-exam summary and revision

PROTON NUMBERS AND RELATIVE ATOMIC MASSES
OF SELECTED ELEMENTS


Element Symbol Proton number Relative atomic mass
Silver Ag 47 107.9
Aluminium Al 13 27.0
Argon Ar 18 40.0
Arsenic As 33 74.9
Gold Au 79 197.0
Boron B 5 10.8
Barium Ba 56 137.3
Beryllium Be 4 9.0
Bismuth Bi 83 209.0
Bromine Br 35 79.9
Carbon C 6 12.0
Calcium Ca 20 40.1
Cadmium Cd 48 112.4
Cerium Ce 58 140.1
Chlorine Cl 17 35.5
Cobalt Co 27 58.9
Chromium Cr 24 52.0
Cesium Cs 55 132.9
Copper Cu 29 63.5
Fluorine F 9 19.0
Iron Fe 26 55.8
Hydrogen H 1 1.0
Helium He 2 4.0
Mercury Hg 80 200.6
Iodine I 53 126.9
Potassium K 19 39.1
Krypton Kr 36 83.8
Lithium Li 3 6.9
Magnesium Mg 12 24.3
Manganese Mn 25 54.9
Nitrogen N 7 14.0
Sodium Na 11 23.0
Neon Ne 10 20.2
Nickel Ni 28 58.7
Oxygen O 8 16.0
Phosphorus P 15 31.0
Protactinium Pa 91 231.0
Lead Pb 82 207.2
Platinum Pt 78 195.1
Radium Ra 88 226.0
Rubidium Rb 37 85.5
Radon Rn 86 222.0
Sulphur S 16 32.1
Antimony Sb 51 121.8
Scandium Sc 21 45.0
Selenium Se 34 79.0
Silicon Si 14 28.1
Tin Sn 50 118.7
Strontium Sr 38 87.6
Uranium U 92 238.0
Tungsten W 74 183.9
Zinc Zn 30 65.4



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