Unbioctium



Unbioctium is the temporary name of an undiscovered element on the periodic table that has the temporary symbol Ubo and atomic number 128.

Stability
The element unbioctium would likely have isotopes that have relatively long half life, possibly on the order of 105 years, as this element is very close to an island of stability. An estimated five isotopes have half lives of over a year while Ubo-340 is the most stable.

Properties
The physical properties of unbioctium have not yet been investigated, though this element is expected to be highly reactive and oxidize quickly. This element would presumably be a metal and solid. The color would probably be silvery white.