Octennennium (Oee)

Octennennium is the systematic name of the theoretical ٨٩٩. element in the periodic table with a symbol of Oee and atomic number of 899. Octennennium, also known as element 899, has ثمانية مائة وتسعة وتسعون protons in its nucleus, and ثمانية مائة وتسعة وتسعون electrons in its shells.