stylistic:style_transfer, structural:expansion
Interhalogen compounds

Interhalogen compounds are in the form of XY where X and Y are halogens and n is one, three, five, or seven. Interhalogen compounds contain at most two different halogens. Large interhalogens, such as ClF can be produced by a reaction of a pure halogen with a smaller interhalogen such as ClF. All interhalogens except IF can be produced by directly combining pure halogens in various conditions.

Interhalogens are typically more reactive than all diatomic halogen molecules except F because interhalogen bonds are weaker. However, the chemical properties of interhalogens are still roughly the same as those of diatomic halogens. Many interhalogens consist of one or more atoms of fluorine bonding to a heavier halogen. Chlorine and bromine can bond with up to five fluorine atoms, and iodine can bond with up to seven fluorine atoms. Most interhalogen compounds are covalent gases. However, some interhalogens are liquids, such as BrF, and many iodine-containing interhalogens are solids.