Halogens: Reaction of the halogens with metals, non-metals, and alkalis.

The binary compounds of halogens with hydrogen or metals are salts known as halides.
metal + halogen → metal halide

Interhalogen compounds are compunds made up of two halogens. Their properties are usually intermediate of the two halogens.

Halogenated compounds, or organic halides, are organic compounds that have a halogen on it.

Halogens react with alkali metals to form salts. This happens because alkali metals have one electron in their outer shell that they want to give away and halogens have seven electrons in their outer shell and they want to gain one electron.


http://www.bbc.co.uk/schools/gcsebitesize/science/add_ocr_pre_2011/periodic_table/group7rev2.shtml
https://www.boundless.com/chemistry/nonmetallic-elements/halogens/halogen-compounds/
http://chemwiki.ucdavis.edu/Inorganic_Chemistry/Descriptive_Chemistry/Main_Group_Elements/Case_Studies/Reactions_of_Main_Group_Elements_with_Halogens