Octennennium (Oee)

Octennennium is the systematic name of the theoretical 899-шы element in the periodic table with a symbol of Oee and atomic number of 899. Octennennium, also known as element 899, has сегіз жүз тоқсан тоғыз protons in its nucleus, and сегіз жүз тоқсан тоғыз electrons in its shells.