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Ununennium - Unbinilium

Full table
Predicted properties
Name, Symbol, NumberUnbinilium, Ubn, 120
Chemical seriesPresumably Alkali earths[?]
Group, Period, Block2, 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 level2, 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.

History 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.

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