Name Bromine
Symbol Br
Atomic Number 35
Atomic Mass 79.904 atomic mass units
Number of Protons 35
Number of Neutrons 45
Number of Electrons 35
Melting Point -7.2 C
Boiling Point 58.78 C
Density 3.119 grams per cubic centimeter
Normal Phase Gas
Family Halogens
Period 4
Cost $4.90 per 100 grams



Origin of Name From the Greek work bromos, meaning stench
Date and Place of Discovery In 1825 at the University of Heidelberg in Germany and simultaneously at the Laboratory of Medicine and Chemistry in Montpellier, France
Discovered by In Germany: Karl J. Lowig and Professor L. Gemlin
In France: Antoine Jerome Balard
Common Compounds
Interesting facts
  • It is obtained from sea water.
  • It is a strong irritant that in concentrated forms can cause skin blisters.
  • Approximately 500 million kilograms of bromine are produced worldwide in a year.
Common Uses
  • Brominated vegetable oil
  • Citrus flavored soft drinks
  • Drug to aid in sleeplessness (no longer available in the United States)
  • Anti-knock products found in gasoline
  • Fumigants
  • Poisons
  • Dyes
  • Photographic chemicals
  • Medicines


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