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 fënnef­honnert­zweeanzwanzeg protons in its nucleus, and fënnef­honnert­zweeanzwanzeg electrons in its shells.