Science Fair Project Encyclopedia
Ununbium
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| Known properties | |||||
|---|---|---|---|---|---|
| Name, Symbol, Number | Ununbium, Uub, 112 | ||||
| Chemical series | Transition metal | ||||
| Group, Period, Block | 12, 7, d | ||||
| Appearance | Unknown, probably a metallic and silvery white or grey colour. | ||||
| Atomic weight | [285] amu | ||||
| Electron configuration | [Rn].5f14 6d10 7s2 a guess based on Mercury | ||||
| e-s per energy level | 2, 8, 18, 32, 32, 18, 2 | ||||
| State of matter | probably liquid | ||||
Ununbium (eka-mercury) is a chemical element in the periodic table that has symbol Uub and has the atomic number 112. Element 112 is one of the superheavy elements; its longest-lived isotope has a mass of 285 and a half-life of 11 min. Some research has referred to it as "eka-mercury". Following periodic trends, it is expected to be a liquid metal more volatile than mercury.
History
It was first created on February 9, 1996 at the Gesellschaft für Schwerionenforschung (GSI) in Darmstadt, Germany. This element was created by fusing a zinc atom with a lead atom by accelerating zinc nuclei into a lead target in a heavy ion accelerator.
Ununbium is a temporary IUPAC systematic element name.
External links
10-26-2009 08:16:03
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details