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Ununennium

Ununennium - Unbinilium
Fr
Uue
   
 
 

Full table
Predicted properties
Name, Symbol, NumberUnunennium, Uue, 119
Chemical seriesPresumably Alkali metals
Group, Period, Block1, 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 level2, 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.

History 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.

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