Unbitrium

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 unbitrium.

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 references

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".