Pentoctennium (Poe)
Pentoctennium is the systematic name of the theoretical ٥٨٩. element in the periodic table with a symbol of Poe and atomic number of 589. Pentoctennium, also known as element 589, has خمسة مائة وتسعة وثمانون protons in its nucleus, and خمسة مائة وتسعة وثمانون electrons in its shells.