|
|
| 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 |
Ununennium is the temporary name of an undiscovered
chemical element in the
periodic table that has the temporary symbol Uue and has the atomic number 119.
The name Ununennium is used as a placeholder, such as in scientific articles about the search for Element 119; it is a
Latinate 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.