Key information
Atomic number: 
35
Atomic weight: 
79.91
Density: 
3120 kg/m³
Boiling point: 
331.16° K
Melting point: 
265.96° K
Heat vapour: 
14.99 kJ/mol
Heat fusion: 
5.28 kJ/mol
Group: 
Halogen Elements

Bromine is the only liquid nonmetallic element at room temperature. It is a heavy, reddish-brown liquid, that evaporates easily. It is mostly obtained from sea water, where it occurs in small quantities.

A common use of bromine was in the production of 1,2-dibromoethane which in turn was used as an anti-knock agent for leaded petrol. This use has been largely discontinued with the switch to unleaded fuels.

Electron Shell: 
Amazon Books
Image of The Last Sorcerers: The Path from Alchemy to the Periodic Table
Author: National Academy of Sciences, Richard Morris
Publisher: Henry (Joseph) Press (2003)
Binding: Hardcover, 294 pages