Pentbibium (Pbb)

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