Ununquadium+(Flerovium)

Ununquadium is the temporary name given to element 114 while its proposed name, Flerovium, goes through the official approval process. As a result, you will sometimes see both names used to refer to element 116 (or it may just be called "element 116"). About 80 decays of atoms of ununquadium have been observed to date, 50 directly and 30 from the decay of the heavier elements ununhexium and ununoctium. All decays have been assigned to the five neighbouring isotopes with mass numbers 285–289. The longest-lived isotope currently known is 289Uuq with a half-life of ~2.6 s, although there is evidence for a nuclear isomer, 289bUuq, with a half-life of ~66 s, that would be one of the longest-lived nuclei in the superheavy element region. Chemical studies performed in 2007 strongly indicate that ununquadium possesses non-eka-lead properties and appears to behave as the first superheavy element that portrays noble-gas-like properties due to relativistic effects.[2] Flerovium was made by a fusion reaction of element 20 with element 94: [|calcium-48] with [|plutonium-244]. (2) Calcium ions were formed into a beam in the U400 cyclotron (a particle accelerator) at Dubna, accelerating to reach 10% of the speed of light before hitting the plutonium target.

The experiment was run for 6 months. In the first 40 days, 5 x 1018 calcium ions were fired at the plutonium, resulting in the formation of a single atom of flerovium-289, which existed for 30.4 seconds before decaying. (2) Later, two atoms of flerovium-288 were made, allowing an approximate half-life of 2 seconds to be estimated for this isotope. (3) As a result of its position in Group 14 of the periodic table we might expect flerovium to be one of the 'other metals' with properties similar to [|lead] with possible oxidation states of +2 and +4. Too little flerovium has been synthesized for its properties to be assessed with certainty.


 * Properties: **

// **Italics denote information that is presumed, but unconfirmed.** // Thanks to webelements.com for this information.
 * Symbol: || Uuq ||
 * Atomic Number || 114 ||
 * Atomic Mass || //289// ||
 * Standard State || //Solid at 298 K// ||
 * Group (in Periodic Table) || 14 ||
 * Period (in Periodic Table) || 7 ||
 * Classification || Metallic ||
 * Color || //Silvery white/ grey// ||
 * Half-life || 21 seconds ||

Uun is an element that is not fond in nature. It can only be made in the laboratory and is very difficult to produce. It is also very reactive, therefore; it is very difficult to study any of its properties or find any uses for it. However, scientists suggest that it may have properties similar to those observed in tin or lead. It was first seen in December 1998 in Dubna, Russia in an experiment that was a collaboration of several institutions. The official discovery was in January 1999. This discovery was confirmed in December of 2002. The name was suggested to honor Georgy Flerov, a Soviet physicist.
 * History and Characteristics: **

If you are interested in learning more about this topic, the following pages were very helpful in my research: [|The Wikipedia Page on Ununquadium] [|WebElements.com Page on Ununquadium] [|Lenntech Page on Ununquadium]
 * Useful sites: **