When an electron is added to a neutral atom, energy is released. An atom of Bromine in the gas phase, for example, gives off energy when it gains an electron to form an ion of Bromine. Origin of Name: From the Greek work bromos, meaning stench: Date and Place of Discovery: In 1825 at the University of Heidelberg in Germany and simultaneously at the Laboratory of Medicine and Chemistry in Montpellier, France A bromide is a chemical compound containing bromide ion, that is bromine atom with effective charge of −1.Bromine has 35 protons and electrons (in the stable state). It’s a member of the halogen family of elements; fluorine, chlorine, and iodine are its companions. Bromine is the third-lightest halogen, and is a fuming red-brown liquid at room temperature that evaporates readily to form a … Laser ablation of solid silicates in the presence of bromine pentafluoride releases O 2 for subsequent analysis. Bromine (atomic number 35, symbol Br) is a chemical element belonging to the halogen group. The bromide ion is Br-. Bromine is extracted by electrolysis from natural bromine-rich brine deposits in the USA, Israel and China. The name bromine has derived from the Greek word ‘Bromos,’ which means something that smells bad. To use electron affinities properly, it is essential to keep track of sign. Log Octanol-Water Partition Coef (SRC): Log Kow (KOWWIN v1.67 estimate) = 0.63 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42): Boiling Pt (deg C): 476.40 (Adapted Stein & Brown method) Melting Pt (deg C): 178.64 (Mean or Weighted MP) VP(mm Hg,25 deg C): 7.94E-009 (Modified Grain … The chemical symbol for Bromine is Br. Bromine, chemical element, a deep red noxious liquid, and a member of the halogen elements, or Group 17 of the periodic table. The Br element can cause serious health problems to humans. Br + e – → Br – – ∆H = Affinity = 324.6 kJ/mol. Jordan, Israel, China, and the United States are major producers of bromine. A bromide is a chemical compound where bromine is the most electronegative element. It may be ionic and contain the bromide ion, Br- or covalent like methyl bromide, CH3Br. Predicted data is generated using the US Environmental Protection Agency’s EPISuite™. Natural salt deposits and brines are the main sources of bromine and its compounds. Bromine has seven valence electrons (found with a quick google search or the fact that it's a halogen or the fact that it's in group 17 or 7A) but wants eight, just like all atoms not in groups 1 and 2. Its symbol is ‘Br’, and the bromine atomic number is 35. It is the only nonmetallic, liquid element and a reddish brown, mobile, volatile, and heavy liquid. It was the first element to be extracted from seawater, but this is now only economically viable at the Dead Sea, Israel, which is particularly rich in bromide (up to 0.5%). 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