The Element Bromine

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The Element Bromine

• The History and Uses of Bromine
• Samantha Brunner
• Chemistry Period 1

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The History of Bromine

• Bromine came from the Greek word meaning
  stench.
• Was discovered in 1826 by two scientists named
  A.J. Balard (France) and K. Lowig (Germany).
• K. Lowig took a liquid to a lab and concluded
  that the red color resulted from the mixture with
  chlorine.

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Physical Properties

• Red liquid with an unpleasant smell to it.
• Very reactive
• Melting Point- 265.9K
• Boiling Point- 331.93K
• Has 7 valence electrons

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Uses of Bromine

• People in the Victorian era drank a potion
  containing a compound of Bromine to help them
  sleep.
• Is used in leaded fuel and is best known for its
  use as silver bromide in photograph papers.
• Also used as pesticides, flame-retardants, water
  purification manufacture of ethylene dibromide,
  bleaching, pharmaceuticals, and shrink proofing
  wool.

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Hazards of Bromine

• Bromine is slightly toxic
• Very corrosive
• Exposure to the vapors cause painful irritation
  to eyes and inflammation of the respiratory
  tract.
• Bromine intake leads to depression and loss of
  weight.
• Also attacks the skin and other tissues to
  produce irritation and necrosis.

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Where Can You Find Bromine?

• Bromine can be found in kelp, shellfish, and sea
  mollusc murex.
• The murex was used to make a purple dye which was
  a compound of bromine.

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Chemical Properties

• Highly reactive with other elements due to the
  fact that it wants to gain 8 valence electrons to
  become a noble gas.
• Bromine belongs to the Halogen Family.
• Bromine is in Period 4.

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Trivia Questions(Lets see if you have been
paying attention)

• What does the word Bromine mean in the Greek
  language?
• bright b) beautiful c) stench d) colorful
• 2) Who were the two scientists that discovered
  Bromine?
• Einstein and Moseley b) Mendeleev and Newland
• Balard and Lowig d) Bohr and Thompson

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Trivia Cont.

• Where can Bromine be found?
• Bison birds b) Shellfish Sea mollusc
• Cats Dogs d) Rats Mice
• What are some uses of Bromine?
• Detergent b) Fuel additives
• c) Anti- freeze d) Air Freshener

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Trivia Cont. 2

• 5) What areas does Bromine affect when inhaled?
• bladder b) skin, eyes, respiratory tract c)
  feet d) brain
• 6) What group does Bromine belong to?
• Noble Gases b) Transition Metals
• c) Halogens d) Metalloids

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Trivia Cont 3

• 7) How many valence electrons does Bromine have?
• 5 b) 3 c) 7 d) 8
• 8) What period does Bromine belong to?
• Period 1 b) Period 3
• c) Period 6 d) Period 4

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References

• Chlorine, Fluorine, Bromine, and Iodine
• Brian Knapp
• Atlantic Europe Publishing Company Limited
• c) 1996 Danbury, CT
• Fisher Science Education 2003/04
• Fisher Science Education Company
• c) 2003

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References Cont.

• The Elements
• John Emsley
• Clarendon Press Oxford, NY
• c) 1998
• Environmental Chemistry
• http//environmentalchemistry.com