Periodic Table
Unbibium, also known as eka-thorium or more generally as element 122, is the hypothetical chemical element with the symbol Ubb and atomic number 122. Unbibium and Ubb are the temporary IUPAC name and symbol, respectively, which are used until the element is discovered, confirmed and a permanent name is decided upon. Unbiunium is expected to be the second element of the superactinides and the fourth element of the 8th period. It would be one of the g-block elements. Like unbiunium, it should fall within the range of the Isle of Stability, which could give additional stability to certain isotopes.