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 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

The name Ununseptium is used as a placeholder, such as in scientific articles about the search for Element 117; it is a Latinateate way of saying "one-one-seven-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

WebElements.com - Uus