Ununhexium
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| Predicted properties |
| Name, Symbol, Number | Ununhexium, Uuh, 116 |
| Chemical series | Presumably poor metals |
| Group, Period, Block | 16, 7 , p |
| Appearance | Unknown, probably a metallic
and silvery white or grey colour |
| Atomic weight | [289] amu(A Guess) |
| Electron configuration | [Rn] 5f14 6d10 7s27p4
(a guess based upon polonium) |
| e- 's per energy level | 2, 8, 18, 32, 32, 18, 6 |
| State of matter | presumably a solid |
Ununhexium is the temporary name of an undiscovered chemical element in the periodic table that has the temporary symbol Uuh and has the atomic number 116.
History
In 1999, researchers at Lawrence Berkeley National Laboratory announced the discovery of elements 116 and 118, in a paper published in Physical Review Letters. The following year, they published a retraction after other researchers were unable to duplicate the results.
In June 2002, the director of the lab announced that the original claim of the discovery of these two elements had been based on data fabricated by the principal author Victor Ninov.
On December 6, 2000 results were published that described the decay of the isotope 292Uuh, which was produced in the reaction of 248Cm with 48Ca. It decayed into 292Uuq.
The name Ununhexium is used as a placeholder, such as in scientific articles about the search for Element 116; it is a Latinate way of saying "one-one-six-ium" ("ium" being a standard ending for element names). Such transuranic elements are always artificially produced, and usually end up being named for a scientist. See Element naming controversy, systematic element name.
External link
Referenced By
Electron affinity | Electron orbital | Electronegative | Electronegativity | Element 115 | Element 117 | List of chemistry topics | Pauling Electronegativity Scale | Period 7 element | Periodic Table | Periodic Table of the Elements | Periodic table/Alternate Table | Periodic table/Electron configurations | Periodic table/Metals and Non Metals | Periodic table/Standard Table | Periodic table/Table only | Periodic table (alternate) | Periodic table (block) | Periodic table (electron configurations) | Periodic table (metals and non-metals) | Periodic table (standard) | Periodic table of elements | Periodic table of the chemical elements | Transuranic | Transuranic element | Transuranium element | Ununpentium | Ununseptium
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