• Latin name:
  Ununennium
• English name:
  Ununennium
• Year discovered:
  ≈2006
• Discovered by:
  Joint Institute for Nuclear Research (JINR), Lawrence Livermore National Laboratory (LLNL)
• Country of Discovery:
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• Cost per 100 grams:
  ----
• CAS Number:
  CAS54846-86-5
• Electron shell:
  K2-L8-M18-N32-O32-P18-Q8-R1

Ununennium, also known as eka-francium, or more commonly known as element 119, is the hypothetical chemical element with the symbol Uue and atomic number 119. Ununennium and Uue are respectively the temporary IUPAC name and symbol, which are used until the element is discovered, confirmed and a permanent name is decided upon. This element would be in the first position in the 8th period, with properties perhaps similar to those of an alkali metal belonging to the s block. Due to relativistic effects that compress its 8s orbital, it would be less reactive than francium and cesium, and would have chemical properties closer to those of rubidium in the 5th period than to those of francium in the 7th period, and its atomic radius would be of the same order as that of francium

• Atomic number:
  119
• Atomic weight (Relative atomic mass):
  316 (g/mol)
• Density:
  7 (g/cm³)
• Melting point:
  30°C = 86.00°F = 303.15K
• Boiling point:
  630°C = 1166.00°F = 903.15K
• Valence electrons:
  1
• Period:
  8
• Group:
  VIIIA
• Block:
  s - 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:
  [Rn] 5f14 6d10 7s2 8s1 = 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 6d10 7s2 7p6 8s1
Oxidation states:

• -
• -
• -
• -
• -
• -
• -
• -
• -
• -
• -
• -
• -
• -
• -
• Ion charge:
  ----
• The ionization potential of an atom:
  ----
• Atomic radius:
  240 (pm)
• Covalent radius:
  263 (pm)
• Van der Waals radius:
  ----

• Electrical conductivity:
  ----
• Electrical type:
  ----
• Magnetic type:
  ----
• Volume magnetic susceptibility:
  ----
• Mass magnetic susceptibility:
  ----
• Molar magnetic susceptibility:
  ----
• Resistivity:
  ----
• Superconducting point:
  ----

• Debye temperature:
  ----

• Colour:
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• CAS Number:
  CAS54846-86-5
• 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:
  0.86
• Valence electrons:
  1
• Electron affinity:
  ----

• Radioactive:
  Yes
• Half life:
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• Lifetime:
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• Neutron cross section, barn:
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• Universe contains "Ununennium" at the rate of
  ----
• Sun contains "Ununennium" at the rate of
  ----
• Oceans contain "Ununennium" at the rate of
  ----
• Human body contains "Ununennium" at the rate of
  ----
• The Earth's crust consists of "Ununennium" at the rate of
  ----
• Meteorites consist of "Ununennium" at the rate of
  ----