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Ununoctium [1] (eka-radon or element 118) is the temporary IUPAC for the transactinide element of atomic number 118 and temporary element symbol Uuo.[2] An ununoctium atom is very unstable, meaning it quickly changes to another atom (nuclear reaction). Only three atoms of ununoctium have been produced since 2002. Although it is a noble gas, it is more reactive than other noble gases. No practical uses of Ununoctium are known, other than for scientifical research in laboratories.

Notes[change | change source]

-Ununoctium is Element 118, meaning that it is the last element in the general periodic table, and the heaviest element known to have ever been produced (May 2015).

  1. "Ununoctium". Columbia Encyclopedia. http://reference.aol.com/columbia/_a/ununoctium/20051207161909990012. Retrieved 2008-01-18. "Pronounced yoo'nànŏk`tēàm"
  2. M.E. Wieser (2006). "Atomic weights of the elements 2005 (IUPAC Technical Report)". Pure and Applied Chemistry 78 (11): 2051–2066. doi:10.1351/pac200678112051.