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 penki šimtai devyniasdešimt aštuoni protons in its nucleus, and penki šimtai devyniasdešimt aštuoni electrons in its shells.