|
|
| Known properties |
|
Name, Symbol, Number
|
Ununquadium, Uuq, 114 |
|
Chemical series
|
Presumably poor metals
|
|
Group, Period, Block
|
14, 7, p
|
|
Appearance
|
Unknown, probably a metallic
and silvery white or grey colour |
|
Atomic weight
|
[289] amu
|
|
Supposed half-life
|
30 seconds
|
|
Electron configuration
|
[Rn] 5f14 6d10 7s27p2
(a guess based upon radon)
|
|
e-s per energy level
|
2, 8, 18, 32, 32, 18, 4 |
|
State of matter
|
presumably a solid |
Ununquadium (Eka-Lead) is the temporary name of a radioactive chemical element in the periodic table that has the temporary symbol Uuq and has the atomic number 114. Ununquadium does not occur naturally.
History
In January 1999, ununquadium was reported informally by scientists at Dubna (Joint Institute for Nuclear Research) in Russia. They apparently used isotopes that came from the Lawrence Livermore National Laboratory, USA. The same team produced another isotope of Uuq three months later. Since then, no one has seriously challenged the finding.
Ununquadium is a temporary IUPAC systematic element name. Some have termed it 'eka-lead', as its properties are conjectured to be similar to those of lead.
See also
External links
- WebElements.com - Uuq http://www.webelements.com/webelements/elements/text/Uuq/index.html
- Apsidium - Ununquadium http://www.apsidium.com/elements/114.htm
Last updated: 05-03-2005 17:50:55
