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Glaxo Wellcome
Pharmacology Guide

Physical chemistry: atomic weights of biologically-important elements

Element

Symbol Atomic no. Atomic weight
Bromine Br 35 79.90
Calcium Ca 20 40.08
Carbon C 6 12.01
Chlorine Cl 17 35.45
Copper Cu 29 63.55
Fluorine F 9 19.00
Hydrogen H 1 1.008
Iodine I 53 126.90
Iron Fe 26 55.85
Lithium Li 3 6.94
Magnesium Mg 12 24.31
Nitrogen N 7 14.01
Oxygen O 8 16.00
Phosphorus P 15 30.97
Potassium K 19 39.10
Sodium Na 11 23.00
Sulphur S 16 32.06


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