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