• Latin name:
  Krypton
• English name:
  Krypton
• Year discovered:
  1898
• Discovered by:
  Sir William Ramsay, Morris William Travers
• Country of Discovery:
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• Cost per 100 grams:
  33 USD
• CAS Number:
  CAS7439-90-9
• Electron shell:
  K2-L8-M18-N8-O0-P0-Q0-R0

Krypton is a chemical element with symbol Kr and atomic number 36. It is a member of group 18 (noble gases) elements. A colorless, odorless, tasteless noble gas, krypton occurs in trace amounts in the atmosphere, is isolated by fractionally distilling liquefied air, and is often used with other rare gases in fluorescent lamps.

• Atomic number:
  36
• Atomic weight (Relative atomic mass):
  83.7979997384043 (g/mol)
• Density:
  0.003749 (g/cm³)
• Melting point:
  -157.37°C = -251.27°F = 115.78K
• Boiling point:
  -153.415°C = -244.15°F = 119.73K
• Valence electrons:
  0
• Period:
  4
• Group:
  VIIIA
• Block:
  p - block
• Emission spectrum:
  

• Phase:
  Gas

  
• 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 4p6 = 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6
Oxidation states:

• 0
• -
• -
• -
• -
• -
• -
• +2
• -
• -
• -
• -
• -
• -
• -
• Ion charge:
  ----
• The ionization potential of an atom:
  14.000 (eV)
• Atomic radius:
  88 (pm)
• Covalent radius:
  116 (pm)
• Van der Waals radius:
  202 (pm)

• Electrical conductivity:
  ----
• Electrical type:
  ----
• Magnetic type:
  Diamagnetism
• Volume magnetic susceptibility:
  -1.65 ⋅ 10^-8
• Mass magnetic susceptibility:
  -4.4 ⋅ 10^-9
• Molar magnetic susceptibility:
  -3.69 ⋅ 10^-10 (m³/mol)
• Resistivity:
  ----
• Superconducting point:
  ----

• Debye temperature:
  -201.15°C = -330.07°F = 72K

• Colour:
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• CAS Number:
  CAS7439-90-9
• 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:
  3
• Valence electrons:
  0
• Electron affinity:
  -96.0 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 "Krypton" at the rate of
  4 ⋅ 10^-6%
• Sun contains "Krypton" at the rate of
  ----
• Oceans contain "Krypton" at the rate of
  2.1 ⋅ 10^-6%
• Human body contains "Krypton" at the rate of
  ----
• The Earth's crust consists of "Krypton" at the rate of
  1.0 ⋅ 10^-8%
• Meteorites consist of "Krypton" at the rate of
  ----