Cody Johns.  Fluorine(F)  Chlorine(Cl)  Bromine(Br)  1886- Isolated by Ferdinand-Frèdèric- Henri Moissan (France).  1774- Prepared by Carl Wilhelm.

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Presentation transcript:

Cody Johns

 Fluorine(F)  Chlorine(Cl)  Bromine(Br)  Isolated by Ferdinand-Frèdèric- Henri Moissan (France).  Prepared by Carl Wilhelm Scheele (Sweden), Identified by Sir Humphry Davy (UK) in  Discovered by Antoine-Jérôme Balard (France).

 Iodine(I)  Astatine(At)  Discovered by Bernard Courtois (France).  Synthesized by Dale R. Corson & K.R. Mackenzie (USA) & Emilio Segrè (Italy/USA).

 All highly reactive with Alkali Metals  Also all very reactive with Alkali Earth Metals  All halogen family elements have 7 outer valance electrons

FLUORINE, CHLORINE, BROMINE, IODINE, ASTATINE

Uses Of These Elements Toothpaste Swimming Pool Cleaners Disinfectants Cooling Agents Photograph Water Cleaners