Ununhexium+(Livermorium)

Ununhexium is the temporary name given to element 116 while its proposed name, Livermorium, goes through the official approval process. As a result, you will sometimes see both names used to refer to element 116.


 * Properties: **

//**Italics denote information that is presumed, but unconfirmed.**// Thanks to webelements.com for this information.
 * Symbol: || Uuh ||
 * Atomic Number || 116 ||
 * Atomic Mass || //293// ||
 * Standard State || //Solid at 298 K// ||
 * Group (in Periodic Table) || 16 ||
 * Period (in Periodic Table) || 7 ||
 * Classification || Metallic ||
 * Color || //Silvery white/ grey// ||

Uuh is an element that is not fond in nature. It can only be made in the laboratory. It is very reactive, therefore; it is very difficult to study any of its properties or find any uses for it. The element was discovered in 1999, but the authenticity of this discovery has been called into question. As a result, credit for the discovery goes to a team in Dubna, Russia in 2002. They collaborated with a number of other scientists, including a team in Livermore, CA (hence the proposed name- Livermorium).
 * History and Characteristics: **

Element 116, livermorium, was first made in Dubna, Russia in July 2000. The work was a collaboration between science teams at the Joint Institute for Nuclear Research in Dubna and the Lawrence Livermore National Laboratory in California led by Yuri Oganessian and Ken Moody. The International Union of Pure and Applied Chemistry (IUPAC) reviewed the work over a period of years and in 2011 finally accepted the discovery of ununhexium, as it was called at the time. (1) The reaction was a fusion of element 20 with element 96: [|calcium-48] with [|curium-248]. Calcium ions were formed into a beam in a cyclotron (a particle accelerator) and fired at a curium target. In the first instance a single atom of livermorium-292 was detected. It existed for 46.9 ms before undergoing alpha-decay to [|flerovium-288]. (1) In an experiment that lasted a year, two further atoms of livermorium-292 were made. The first existed for 125.5 ms and the second for 55.0 ms. By the end of the experiment a total of 2.3 x 1019 calcium ions had been fired at the curium target. (2) By 2005, 30 atoms of livermorium had been made. As a result of its position in Group 16 of the periodic table, livermorium is expected to be classed as one of the 'other metals' and/or to have similar properties to the metalloid [|polonium]. Too little of the element has been synthesized for this to be confirmed. Ununhexium (Uuh) was element 116's temporary name until an official name was chosen by IUPAC. IUPAC has now recommended that element 116 should be named livermorium. Although this name has not yet been given final approval, there is little doubt that this will be the name chosen. The deputy director of Russia's Joint Institute for Nuclear Research (JINR) initially wanted element 116's name to be derived from Muscovy, in honor of the Moscow region. (3) Subsequently, the name livermorium was chosen to honor the work carried out by the scientists from the Lawrence Livermore National Laboratory in California in the discovery of the superheavy elements.

Naming
Ununhexium is historically known as eka-polonium.[7] Ununhexium (Uuh) is a temporary IUPAC systematic element name. Scientists usually refer to the element simply as element 116 (or E116). According to IUPAC recommendations, the discoverer(s) of a new element has the right to suggest a name.[8] The discovery of ununhexium was recognized by JWG of IUPAC on 1 June 2011, along with that of ununquadium.[6] According to the vice-director of JINR, the Dubna team would like to name element 116 moscovium, after the Moscow Oblast in which Dubna is located.[9] As of December 1, 2011, the name livermorium and the symbol Lv are in the IUPAC name approval process.[1] The name recognises the Lawrence Livermore National Laboratory, in Livermore, California, USA, which collaborated with JINR on the discovery.

Future and Current experiements
The team at Dubna have indicated plans to synthesize ununhexium using the reaction between plutonium-244 and titanium-50. This experiment will allow them to assess the feasibility of using projectiles with Z > 20 required in the synthesis of superheavy elements with Z>118. Although initially scheduled for 2008, the reaction looking at the synthesis of evaporation residues has not been conducted to date.[10] There are also plans to repeat the Cm-248 reaction at different projectile energies in order to probe the 2n channel, leading to the new isotope 294Uuh. In addition, they have future plans to complete the excitation function of the 4n channel product, 292Uuh, which will allow them to assess the stabilizing effect of the N=184 shell on the yield of evaporation residues.

If you are interested in learning more about this topic, the following pages were very helpful in my research: [|Webelements: Ununhexium] [|Wikipedia: Ununhexium] [|Lenntech: Ununhexium]
 * Useful sites:**

unuhexium is radioactive.

there are no effects of ununhexium to the environment because of it's short half life.