Octennennium (Oee)

Octennennium is the systematic name of the theoretical ที่ 899 element in the periodic table with a symbol of Oee and atomic number of 899. Octennennium, also known as element 899, has แปด​ร้อย​เก้า​สิบ​เก้า protons in its nucleus, and แปด​ร้อย​เก้า​สิบ​เก้า electrons in its shells.