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Unbinilium
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| Predicted properties |
| Name, Symbol, Number | Unbinilium, Ubn, 120 |
| Chemical series | Presumably Alkali earths[?] |
| Group, Period, Block | 2, 8[?] , s |
| Appearance | unknown, probably metallic
and silvery white or grey colour |
| Atomic weight | [297] amu(A Guess) |
| Electron configuration | [Uuo] 8s2
(a guess based upon barium
and radium) |
| e- 's per energy level | 2, 8, 18, 32, 32, 18, 8, 2 |
| State of matter | presumably a solid |
Unbinilium is the temporary name of an undiscovered chemical element in the periodic table that has the temporary symbol Ubn and has the atomic number 120.
The name Unbinilium is used as a placeholder, such as in scientific articles about the search for Element 120; it is a Latinate way of saying "one-two-naught-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.