• Latin name:
  Bromum
• English name:
  Bromine
• Year discovered:
  1826
• Discovered by:
  Antoine-Jérôme Balard, Karl Jakob Leuwich
• Country of Discovery:
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• Cost per 100 grams:
  45 USD
• CAS Number:
  CAS7726-95-6
• Electron shell:
  K2-L8-M18-N7-O0-P0-Q0-R0

Bromine is a chemical element with symbol Br, and atomic number 35. It is a halogen. The element was isolated independently by two chemists, Carl Jacob Löwig and Antoine Jerome Balard, in 1825–1826.

• Atomic number:
  35
• Atomic weight (Relative atomic mass):
  79.9043261630963 (g/mol)
• Density:
  3.102 (g/cm³)
• Melting point:
  -7.3°C = 18.86°F = 265.85K
• Boiling point:
  58.8°C = 137.84°F = 331.95K
• Valence electrons:
  1, 3, 4, 5
• Period:
  4
• Group:
  VIIA
• Block:
  p - block
• Emission spectrum:
  

• Phase:
  Liquid

  
• Fusion heat:
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• Specific heat:
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• Thermal expansion:
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• Vaporization heat:
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• Electron configuration:
  [Ar] 3d10 4s2 4p5 = 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p5
Oxidation states:

• -
• -1
• -
• -
• -
• -
• +1
• -
• +3
• -
• +5
• -
• +7
• -
• -
• Ion charge:
  Br^1-
• The ionization potential of an atom:
  11.814 (eV)
• Atomic radius:
  94 (pm)
• Covalent radius:
  117 (pm)
• Van der Waals radius:
  183 (pm)

• Electrical conductivity:
  1.28205128205128e-11 (S/m)
• Electrical type:
  Dielectric
• Magnetic type:
  Diamagnetism
• Volume magnetic susceptibility:
  -1.53 ⋅ 10^-5
• Mass magnetic susceptibility:
  -4.9 ⋅ 10^-9
• Molar magnetic susceptibility:
  -7.83 ⋅ 10^-10 (m³/mol)
• Resistivity:
  78000000000.0 (Ω · m)
• Superconducting point:
  ----

• Debye temperature:
  ----

• Colour:
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• CAS Number:
  CAS7726-95-6
• CID Number:
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• RTEC Number:
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• Brinell hardness:
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• Mohs hardness:
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• Vickers hardness:
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• Bulk modulus:
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• Young's modulus:
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• Liquid density:
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• Molar volume:
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• Poisson's ratio:
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• Shear modulus:
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• Speed of sound transmission:
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• Refractive index:
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• Thermal conductivity:
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• Electronegativity:
  2.96
• Valence electrons:
  1, 3, 4, 5
• Electron affinity:
  324.5369 kJ/mole

• Radioactive:
  No
• Half life:
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• Lifetime:
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• Neutron cross section, barn:
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• Universe contains "Bromine" at the rate of
  7 ⋅ 10^-7%
• Sun contains "Bromine" at the rate of
  ----
• Oceans contain "Bromine" at the rate of
  0.0066%
• Human body contains "Bromine" at the rate of
  0.00037097328802%
• The Earth's crust consists of "Bromine" at the rate of
  2.4 ⋅ 10^-4%
• Meteorites consist of "Bromine" at the rate of
  1.2 ⋅ 10^-4%