An atom of Bromine in the gas phase, for example, gives off energy when it gains an electron to form an ion of Bromine. Bromine is extracted by electrolysis from natural bromine-rich brine deposits in the USA, Israel and China. 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 It is the only nonmetallic, liquid element and a reddish brown, mobile, volatile, and heavy liquid. Bromine pentafluoride, Br F 5, is an interhalogen compound and a fluoride of bromine.It is a strong fluorination reagent.. BrF 5 finds use in oxygen isotope analysis. Bromine (atomic number 35, symbol Br) is a chemical element belonging to the halogen group. The bromide ion is Br-. It may be ionic and contain the bromide ion, Br- or covalent like methyl bromide, CH3Br. Jordan, Israel, China, and the United States are major producers of bromine. Bromine is the third-lightest halogen, and is a fuming red-brown liquid at room temperature that evaporates readily to form a … To use electron affinities properly, it is essential to keep track of sign. Bromine is a chemical element with atomic number 35 which means there are 35 protons and 35 electrons in the atomic structure. 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). Br + e – → Br – – ∆H = Affinity = 324.6 kJ/mol. Natural salt deposits and brines are the main sources of bromine and its compounds. The vapor irritates the throat and eyes and has an unpleasant, strong odor. It’s a member of the halogen family of elements; fluorine, chlorine, and iodine are its companions. Its symbol is ‘Br’, and the bromine atomic number is 35. Predicted data is generated using the US Environmental Protection Agency’s EPISuite™. A bromide is a chemical compound where bromine is the most electronegative element. 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. The name bromine has derived from the Greek word ‘Bromos,’ which means something that smells bad. Bromine, chemical element, a deep red noxious liquid, and a member of the halogen elements, or Group 17 of the periodic table. The chemical symbol for Bromine is Br. 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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