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Bromine  SEE PERIODIC TABLE
see article  SEE FULL ARTICLE


Atomic Number35

Atomic SymbolBr

Atomic Weight79.904 amu

GroupHalogen, 17

FormLiquid

Density @ STP3.1028 g/cm3

Melting Point-7.2 °C (19.04 °F, 265.95 °K)

Boiling Point58.8 °C (137.84 °F, 331.95 °K)

Heat of Fusion10.57 kJ/mol

Heat of Vaporization29.96 kJ/mol

First Ionization Potential11.81381 eV

Electronegativity (on Pauling scale)2.96

Specific Heat Capacity0.226 J/g K

Ground State Electron Configuration4p5

Oxidation States+1, +5, -1

Stable Isotopes and Natural Abundance on Earth79Br, 50.69%; 81Br, 49.31%

Selected Radioisotopes75Br, 77Br, 82Br

Atomic Radius94 pm

Crystal StructureOrthorhombic

Discovered byBalard, 1826

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