Pentunennium (Pue)
Pentunennium is the systematic name of the theoretical ที่ 519 element in the periodic table with a symbol of Pue and atomic number of 519. Pentunennium, also known as element 519, has ห้าร้อยสิบเก้า protons in its nucleus, and ห้าร้อยสิบเก้า electrons in its shells.