• Latin name:
  Europium
• English name:
  Europium
• Year discovered:
  1896
• Discovered by:
  Eugène-Anatole Demarçay
• Country of Discovery:
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• Cost per 100 grams:
  165 USD
• CAS Number:
  CAS7440-53-1
• Electron shell:
  K2-L8-M18-N25-O8-P2-Q0-R0

Europium is a chemical element with symbol Eu and atomic number 63. It was isolated in 1901 and is named after the continent of Europe. It is a moderately hard, silvery metal which readily oxidizes in air and water.

• Atomic number:
  63
• Atomic weight (Relative atomic mass):
  151.964376904171 (g/mol)
• Density:
  5.244 (g/cm³)
• Melting point:
  826.0°C = 1518.80°F = 1099.15K
• Boiling point:
  1529.0°C = 2784.20°F = 1802.15K
• Valence electrons:
  2, 3
• Period:
  6
• Group:
  
• Block:
  f - block
• Emission spectrum:
  

• Phase:
  Solid

  
• 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:
  [Xe] 4f7 6s2 = 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f7 5s2 5p6 6s2
Oxidation states:

• -
• -
• -
• -
• -
• -
• -
• +2
• +3
• -
• -
• -
• -
• -
• -
• Ion charge:
  Eu^{2+, 3+}
• The ionization potential of an atom:
  5.670 (eV)
• Atomic radius:
  231 (pm)
• Covalent radius:
  183 (pm)
• Van der Waals radius:
  233 (pm)

• Electrical conductivity:
  1111111.11111111 (S/m)
• Electrical type:
  Conductor
• Magnetic type:
  Paramagnetism
• Volume magnetic susceptibility:
  0.0014473
• Mass magnetic susceptibility:
  2.76 ⋅ 10^-7
• Molar magnetic susceptibility:
  4.1942 ⋅ 10^-8 (m³/mol)
• Resistivity:
  9 ⋅ 10^-7 (Ω · m)
• Superconducting point:
  ----

• Debye temperature:
  ----

• Colour:
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• CAS Number:
  CAS7440-53-1
• 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:
  ----
• Valence electrons:
  2, 3
• Electron affinity:
  11.2 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 "Europium" at the rate of
  ----
• Sun contains "Europium" at the rate of
  5 ⋅ 10^-6%
• Oceans contain "Europium" at the rate of
  1.3 ⋅ 10^-9%
• Human body contains "Europium" at the rate of
  ----
• The Earth's crust consists of "Europium" at the rate of
  2.0 ⋅ 10^-4%
• Meteorites consist of "Europium" at the rate of
  5.9 ⋅ 10^-6%