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The halogens are the elements in group 17 of the periodic table, that is: fluorine, chlorine, bromine, iodine, and astatine.

Astatine@	Bromine@
Chlorine@	Fluorine@
Iodine@

• Doc Brown's Chemistry Clinic: The Halogens Includes an overview, general properties, reactivity trends, and information about the industrial electrolysis of sodium chloride solution.
• The Chemistry of the Halogens Covers their properties, methods of preparation, general trends, the hydrogen halides, and oxyacids of the halogens and their salts.
• Visual Elements: The Halogens Overview, general properties, and chemical data for the group.

 

 

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