Penthexennium (Phe)

Penthexennium is the systematic name of the theoretical ที่ 569 element in the periodic table with a symbol of Phe and atomic number of 569. Penthexennium, also known as element 569, has ห้า​ร้อย​หก​สิบ​เก้า protons in its nucleus, and ห้า​ร้อย​หก​สิบ​เก้า electrons in its shells.