BrZ =  35

From the Greek "bromos", meaning "dirt or stench"
(AM) Atomic Mass 79.904  amu    Oxidation States +1, +3, +5, +7, -1
   (BP) Boiling Point 58.8  °C    (MP) Melting Point -7.2  °C
   (ρ) Density 3.12  g/cm3    Crystal Structure Orthorhombic
   ( χ ) Electronegativity 2.8    (AR) Atomic Radius 1.14  Å
   Physical State Liquid (C) Heat Capacity 0.226  J/g °C
Electronic-Config [Ar]  3d10  4s2  4p5     (I1) First Ionization E 1139.87  kJ/mol
   (ΔHvap) Heat of Vaporization 29.96  kJ/mol     (ΔHfus) Heat of Fusion 10.57  kJ/mol
   Year of Discovery 1825    Location of Discovery France
(E°) Standard Potential Br2 (aq) ⇔ 2 Br- (1.087 V),   Br2 (l)⇔ 2 Br- (1.066 V)
Stable isotopes  79Br,  81Br
Discovered/Synthesized by Antoine-Jérôme Balard
Natural Source Isolated from the brines from wells and Dead Sea
Common Uses Disinfectant, pools and spas, photo film, flame retardant, leaded gas, sedatives
Other Info Can also be used like Chlorine as a sanitizing agent
Exists in nature as the diatomic molecule Br2
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