Uunuuteen288

Uunuuteen288 is a superheavy element with the atomic number 120. It is a synthetic element, meaning it does not occur naturally on Earth and can only be created in a laboratory. The element was first synthesized in 2003 by a team of Russian and American scientists at the Joint Institute for Nuclear Research in Dubna, Russia, and the Lawrence Livermore National Laboratory in California, USA. The discovery was confirmed in 2007.

Uunuuteen288 is highly unstable and radioactive, with a half-life of approximately 0.89 milliseconds. It is expected to decay through alpha decay to the element ununpentium (Uup, atomic number 115). Due to its short half-life and the difficulty of synthesizing it, very little is known about the chemical properties of uunuuteen288.

The name "uunuuteen288" is a temporary systematic name given by the International Union of Pure and Applied Chemistry (IUPAC) until a permanent name is proposed and approved. The name is derived from the element's atomic number, 120, and the Latin words "un" (one) and "un" (one), which are used to denote the number of times the element has been discovered. The permanent name for the element is yet to be determined.