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Ubt

Ust
Appearance
General properties
Name, symbol, number unbitrium, Ubt, 123
Element category superactinides
Group, period, block n/a8, g
Standard atomic weight unknowng·mol−1
Electron configuration [Uuo] 5g3 8s2
(predicted)
Electrons per shell 2, 8, 18, 32, 35, 18, 8, 2
(predicted) (Image)
Physical properties
Atomic properties

Unbitrium (pronounced /uːnˈbɪtriəm/) is the temporary name of a hypothetical chemical element in the periodic table that has the temporary symbol Ubt and has the atomic number 123. Calculations have shown that 326Ubt would be the most stable isotope.

As of November 2009, no attempt has ever been made to synthesise element 123.

Naming

The name unbitrium is a systematic element name, used as a placeholder until it is confirmed by other research groups and the IUPAC decides on a name. Usually, the name suggested by the discoverer(s) is chosen.

Fictional reference to element 123

In the fictional universe of Star Trek: The Next Generation, this element was apparently discovered and named. The episode "Rascals" depicted a "trans-periodic table," in a schoolroom set, which depicted element number 123 as being named jamesium, symbol Rj, having an atomic weight of 326. The graphic was created by set artists, probably a homage to designer Richard D. James, and listed this element in the fictional "gamma series".

See also

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