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Topic: Ununquadium


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  ununquadium. The Columbia Encyclopedia, Sixth Edition. 2001-05
Late in Dec., 1998, using plutonium-244 and calcium-48 isotopes provided by the Lawrence Berkeley National Laboratory in Calif., Russian scientists employed a cyclotron at the Joint Institute for Nuclear Research in Dubna to produce an atom of element 114 with a mass number of 289.
After a surprisingly long existence of 30 seconds, the ununquadium atom broke down successively into ununbium (element 112), darmstadtium (element 110), and hassium (element 108).
Ununquadium is the first element of what might be an “island of stability”; among heavy nuclei.
www.bartleby.com /65/un/ununquadium.html   (327 words)

  
 Ununquadium - Uuq
Ununquadium can be synthesized by bombarding plutonium 244 targets with calcium 48 heavy beams.
Ununquadium does not have any known application and little is known about it.
Ununquadium does not occur naturally on the earth, it is entirely synthesized in laboratories.
www.lenntech.com /Periodic-chart-elements/Uuq-en.htm   (149 words)

  
 ununquadium — Infoplease.com
Ununquadium is the first element of what might be an “island of stability”; among heavy nuclei.
Periodic Table of the Elements: Ununquadium - Periodic Table of the Elements: Ununquadium 114 Uuq Ununquadium (289) 2 · 8 · 18 32...
Uuq - Uuq Uuq, symbol for the element ununquadium.
www.infoplease.com /ce6/sci/A0850130.html   (313 words)

  
 Chemistry : Periodic Table : ununquadium : biological information
Here are a few notes about the biological role of ununquadium.
Here are a few notes about the hazards and risks associated with ununquadium.
Since element 114 does not occur at all in the biosphere it never presents a risk, but it would constitute a radiation hazard if enough was ever assembled in one place.
www.webelements.com /webelements/elements/text/Uuq/biol.html   (235 words)

  
 It's Elemental - The Element Ununquadium
Ununquadium was first produced by scientists working at the Joint Institute for Nuclear Research in Dubna, Russia in 1998.
This produced a single atom of ununquadium-289, an isotope with a half-life of about 21 seconds.
Ununquadium's most stable isotope, ununquadium-289, has a half-life of about 21 seconds.
education.jlab.org /itselemental/ele114.html   (77 words)

  
 The Element Ununquadium
Ununquadium - An element from the Periodic Table based on the IOUPAC 1985 standard
Ununquadium - IUPAC and the Modern Standardised Periodic Table
The Free Online Science Quiz contains many questions relating to Ununquadium and each additional element - group, classification, properties and atomic number.
www.periodic-table.org.uk /element-ununquadium.htm   (110 words)

  
 Ununquadium at opensource encyclopedia   (Site not responding. Last check: )
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.
In January 1999, ununquadium was reported informally by scientists at Dubna (Joint Institute for Nuclear Research) in Russia.
There is an ongoing element naming controversy over what this element should be called.
www.wiki.tatet.com /Ununquadium.html   (130 words)

  
 Chemistry : Periodic Table : ununquadium : key information
Chemistry : Periodic Table : ununquadium : key information
Chemistry: WebElements Periodic Table: Professional Edition: Ununquadium: key information
Here is a brief summary of the isolation of ununquadium.
www.webelements.com /webelements/elements/text/Uuq/key.html   (364 words)

  
 Ununquadium
Chemical Forums: Chemistry Forum, Chemistry Question, Chemistry Help > Chemistry Forums for Students of Chemistry > General Chemistry Forum (Moderators: tamim83, Dan) > Ununquadium
Thanks for the reply on previous question I have asked:) Can someone help me with the empirical formulae of the highest normal oxide of ununquadium and of its highest fluoride?
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www.chemicalforums.com /index.php?topic=3437.0   (185 words)

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