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                             ==Ununennium==

Ununennium is a radioactive, synthetic element in the periodic table with the symbol Uue and an atomic number of 119.

Physical Characteristics

Ununennium is a silver or gray metal, liquid at room temperature. However, due to its extreme radioactivity, it quickly evaporates. It has a density of 2.137 g/cm^3, a melting point of 65f, and a boiling point of 800f.

Chemical Characteristics

Ununennium is placed below the Alkali Metals in group 1, so, if a large enough amount could be readied, it would react extremely violently with both water and air.

Isotopes

18 Radioisotopes of Ununennium have been synthesized. They range from Uue-284 to Uue-302, with Uue-302 being the most stable with a half-life of 460 microseconds. The second most stable is Uue-300, with a half-life of 120 microseconds. They alpha decay to Uus-298 and Uus-296, respectively.

Occurrence

Ununennium is not known to occur naturally, although it may be created by spontaneous fusion of Praseodymium and Neodymium.

Production

Ununennium is produced primarily by combination of Calcium-48 and Einsteinium-254.

Compounds

As an Alkali Metal, Ununennium reacts violently to form an oxide, Uue2O. It also forms an Iodide, UueI, and a Chloride, UueCl.

History

Synthesis of Ununennium was first attempted in 1985, and was finally achieved in March 2011. The name Ununennium is a systematic element name derived from the IUPAC. Once the discovery is confirmed, the discoverer(s) will choose a name. Right now, the discoverer(s) are considering the names Hawkingium (Hk) and Jinrium (Jn) after Stephen Hawking and the JINR (Joint Institute for Nuclear Research).

Precautions

Ununennium is dangerous due to its high radioactivity, reactivity, and toxicity levels.