Ununseptium

ununhexium - ununseptium - ununoctium At Uus         Full table
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.

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.

External links

• WebElements.com - Uus
• Apsidium - Ununseptium