The Ununquadium reference article from the English Wikipedia on 24-Jul-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Ununquadium

Ununtrium - Ununquadium - Ununpentium Pb Uuq         Full table
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 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. There is an ongoing element naming controversy over what this element should be called. Some have termed it 'eka-lead', as its properties are conjectured to be similar to those of lead.

External links

• WebElements.com - Uuq
• Apsidium - Ununquadium

This is the "Ununquadium" reference article from the English Wikipedia. All text is available under the terms of the GNU Free Documentation License. See also our Disclaimer.