• Name: Ununoctium (temporary)

  • Symbol: Uuo

  • Number of Energy Levels: 7 (predicted)

  • Electrons on the outer energy level: 8 (predicted)

  • Atomic Number: 118

  • Atomic Mass: 294 Amu

  • Protons / Electrons: 118

  • Neutrons: 176

  • Density: 4.9 - 5.1 g/cm3 (predicted)

  • Classification: Transition Metal (predicted)

Top 12 interesting facts about Ununoctium (temporary)

  • Ununoctium was discovered in 2002 at Joint Institute for Nuclear Research in Russia and Lawrence Livermore National Laboratory. Ununoctium was named according to IUPAC systematic element name.
  • Its melting point is predicted to be somewhere around 258 K (-15 C, 4.73 F) and its boiling point is predicted to be at 350 K (80 C, 170 F).
  • Ununoctium's name is temporary.
  • Ununoctium is also known as eka-radon or simply element 118.
  • Ununoctium is the only one synthetic element of group 18.
  • Ununoctium has the highest atomic mass and the highest atomic number of all chemical elements.
  • Ununoctium is very radioactive.
  • Ununoctium's atom is very unstable.
  • Only several atoms of ununoctium (ununoctium-294) have been detected so far since 2005 via collision of californium-294 and calcium-48.
  • Ununoctium is member of group 18 of the chemical elements but it might not be a noble gas as the other elements of the group.
  • Ununoctium is believed to be a solid under standard conditions of temperature and pressure, not a gas as it was believed.
  • Ununoctium is calculated to have a half-life of 0.89 ms.