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.