Pentennoctium (Peo)

Pentennoctium is the systematic name of the theoretical 598. element in the periodic table with a symbol of Peo and atomic number of 598. Pentennoctium, also known as element 598, has fënnef­honnert­aachtannonzeg protons in its nucleus, and fënnef­honnert­aachtannonzeg electrons in its shells.