One of the best known synthetic polymers.
The first member in the homologous series of 1-alkenes.
One of the hydrogen halides, a highly aggressive substance - it even attacks glass.
Polymerised ethylene is known as polyethylene, a type of plastic.
Addition is a reaction in which the molecules of two or more substances unite without the formation of a by-product.
The lightest halogen, a pale yellow-green, toxic gas, extremely reactive. Its best known compound is teflon.
The monomer of PVC.
Colourless, heavier-than-air gas with a pungent odour. It forms white fumes in moist air.
Halogen elements are a group in the periodic table consisting of five chemically related elements, fluorine, chlorine, bromine, iodine, and astatine.