| |||||
Predicted properties | |||||
---|---|---|---|---|---|
Name, Symbol, Number | Ununennium, Uue, 119 | ||||
Chemical series | Presumably Alkali metals | ||||
Group, Period, Block | 1, 8 , s | ||||
Appearance | unknown, probably metallic and silvery white or grey colour | ||||
Atomic weight | [295] amu(A Guess) | ||||
Electron configuration | [Uuo] 8s1 (a guess based upon caesium and francium) | ||||
e- 's per energy level | 2, 8, 18, 32, 32, 18, 8, 1 | ||||
State of matter | presumably a liquid | ||||
History
The name Ununennium is used as a placeholder, such as in scientific articles about the search for Element 119; it is a Latinateate way of saying "one-one-nine-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.