• Latin name:
  Natrium
• English name:
  Sodium
• Year discovered:
  1807
• Discovered by:
  Humphry Davy
• Country of Discovery:
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• Cost per 100 grams:
  12.5 USD
• CAS Number:
  CAS7440-23-5
• Electron shell:
  K2-L8-M1-N0-O0-P0-Q0-R0

Sodium is a chemical element with symbol Na (from Ancient Greek Νάτριο) and atomic number 11. It is a soft, silver-white, highly reactive metal. In the Periodic table it is in column 1 (alkali metals), and shares with the other six elements in that column that it has a single electron in its outer shell, which it readily donates, creating a positively charged atom - a cation.

• Atomic number:
  11
• Atomic weight (Relative atomic mass):
  22.9897692819791 (g/mol)
• Density:
  0.968 (g/cm³)
• Melting point:
  97.794°C = 208.03°F = 370.94K
• Boiling point:
  882.94°C = 1621.29°F = 1156.09K
• Valence electrons:
  1
• Period:
  3
• Group:
  IA
• Block:
  s - 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:
  [Ne] 3s1 = 1s2 2s2 2p6 3s1
Oxidation states:

• -
• -1
• -
• -
• -
• -
• +1
• -
• -
• -
• -
• -
• -
• -
• -
• Ion charge:
  Na¹⁺
• The ionization potential of an atom:
  5.139 (eV)
• Atomic radius:
  190 (pm)
• Covalent radius:
  160 (pm)
• Van der Waals radius:
  227 (pm)

• Electrical conductivity:
  20964360.5870021 (S/m)
• Electrical type:
  Conductor
• Magnetic type:
  Paramagnetism
• Volume magnetic susceptibility:
  8.6 ⋅ 10^-6
• Mass magnetic susceptibility:
  8.8 ⋅ 10^-9
• Molar magnetic susceptibility:
  2 ⋅ 10^-10 (m³/mol)
• Resistivity:
  4.77 ⋅ 10^-8 (Ω · m)
• Superconducting point:
  ----

• Debye temperature:
  -123.15°C = -189.67°F = 150K

• Colour:
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• CAS Number:
  CAS7440-23-5
• 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:
  0.93
• Valence electrons:
  1
• Electron affinity:
  52.867 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 "Sodium" at the rate of
  0.002%
• Sun contains "Sodium" at the rate of
  0.004%
• Oceans contain "Sodium" at the rate of
  1.1%
• Human body contains "Sodium" at the rate of
  0.14268203385251%
• The Earth's crust consists of "Sodium" at the rate of
  2.36%
• Meteorites consist of "Sodium" at the rate of
  0.55%