Halogens Bromine, Iodine, Astatine

The halogens fluorine, chlorine, bromine, iodine, astatine. 

J. Shamir (1994) Chlorine, bromine, iodine astatine Inorganic chemistry in Encyclopedia of Inorganic Chemistry, ed. R.B. King, Wiley, Chichester, vol. 2, p. 646 - An overview of the heavier halogens. 

Polyvinyl halide n. A term sometimes used (almost exclusively in patents) for polymers and co-polymers of vinyl chloride. Aside from polyvinyl fluoride, which is more similar structurally to polyethylene, and brominated butyl rubber, which has enjoyed some use in the automobile-tire industry, no polymers containing the other halogens (bromine, iodine, and astatine) exist in commerce. 

The Halogens Fluorine, Chlorine, Bromine, Iodine and Astatine... 

---