Ununseptium
From Wikipedia, the free encyclopedia.
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| Predicted properties | |||||
|---|---|---|---|---|---|
| Name, Symbol, Number | Ununseptium, Uus, 117 | ||||
| Chemical series | Presumably Halogens | ||||
| Group, Period, Block | 17, 7, p | ||||
| Appearance | unknown, but probably metallic and dark in appearance | ||||
| Atomic weight | [291] amu (a guess) | ||||
| Electron configuration | [Rn] 5f14 6d10 7s27p5 (a guess based upon astatine) | ||||
| e-s per energy level | 2, 8, 18, 32, 32, 18, 7 | ||||
| State of matter | presumably a solid | ||||
Ununseptium (eka-astatine) is the temporary name of an undiscovered chemical element in the periodic table that has the temporary symbol Uus and has the atomic number 117.
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History
Ununseptium has not yet been discovered. If discovered, it will most likely be a synthetically prepared element.
Ununseptium is a temporary IUPAC systematic element name.
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External links
- WebElements.com - Uus (http://www.webelements.com/webelements/elements/text/Uus/index.html)
- Apsidium - Ununseptium (http://www.apsidium.com/elements/117.htm)ca:Ununsepti
de:Ununseptium es:Ununseptio eo:Ununseptio fr:Ununseptium nl:Ununseptium nn:Ununseptium ja:未発見元素の一覧 pl:Ununseptium sr:Унунсептијум sv:Ununseptium uk:Унунсептій
