Pentbibium (Pbb)

Pentbibium is the systematic name of the theoretical 522. element in the periodic table with a symbol of Pbb and atomic number of 522. Pentbibium, also known as element 522, has fimm­hundrað­og­tjúgo­tveir protons in its nucleus, and fimm­hundrað­og­tjúgo­tveir electrons in its shells.