The halogen atoms provide a bond with the carcass compounds which are mainly natural rubber.

In molecules with more than one halogen atom more complicated patterns appear.

Properties depend on the number and identity of the halogen atoms.

Reactions in which a halogen atom is removed from an organic molecule.

A halide ion is a halogen atom bearing a negative charge.

Halo-uranates are compounds in which one oxygen atom is replaced by two halogen atoms.

The halogen atoms in polysilicon dihalides can be substituted with organic groups.

The halogen atoms differ greatly in size from hydrogen and from each other.

Any bonds not taken up by halogen atoms are then allocated to hydrogen atoms.

A single carbon only has four bonds, all of which are taken by the halogen atoms, so there is no hydrogen.