Periodic Table of the Elements Bromine

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bromine

World Encyclopedia | 2005 | © World Encyclopedia 2005, originally published by Oxford University Press 2005. (Hide copyright information) Copyright

bromine (symbol Br) Volatile liquid element of the halogen group (elements in group VII of the periodic table), first isolated in 1826 by the French chemist A. J. Balard. Bromine is the only liquid form of a nonmetallic element. It is extracted by treating seawater or natural brines with chlorine. A reddish-brown fuming liquid having an unpleasant odour, it is used in commercial compounds, such as those used to manufacture photographic film and additives for petrol. Chemically it resembles chlorine but is less reactive. Properties: at.no. 35; r.a.m 79.904; r.d. 3.12; m.p. −7.2°C (19.04°F); b.p. 58.8°C (137.8°F); the most common isotope is Br79 (50.54%).
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Periodic Table of the Elements: Bromine

The Columbia Encyclopedia, Sixth Edition | 2008 | The Columbia Encyclopedia, Sixth Edition. Copyright 2008 Columbia University Press. (Hide copyright information) Copyright

Periodic Table of the Elements: Bromine

Periodic Table of the Elements: Bromine
Atomic Number: 35
Atomic Symbol: Br
  Bromine
Atomic Weight: 79.904
Electron Configuration: 2 · 8 · 18 · 7

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