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| Predicted properties
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| Name, Symbol, Number | Ununseptium, Uus, 117
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| Chemical series | Presumably Halogens
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| Group, Period, Block | 17, 7 , p
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| Appearance | unknown, but probably metallic
and dark in appearance
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| Atomic weight | [291] amu (a guess)
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| Electron configuration | [Rn] 5f14 6d10 7s27p5
(a guess based upon astatine)
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| e-s per energy level | 2, 8, 18, 32, 32, 18, 7
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| State of matter | presumably a solid
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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.
History
Ununseptium has not yet been discovered.
Ununseptium is a temporary IUPAC systematic element name.
External links
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