Pentennennium (Pee)

Pentennennium is the systematic name of the theoretical ٥٩٩. element in the periodic table with a symbol of Pee and atomic number of 599. Pentennennium, also known as element 599, has خمسة مائة وتسعة وتسعون protons in its nucleus, and خمسة مائة وتسعة وتسعون electrons in its shells.