Pentunseptium (Pus)

Pentunseptium is the systematic name of the theoretical ที่ 517 element in the periodic table with a symbol of Pus and atomic number of 517. Pentunseptium, also known as element 517, has ห้า​ร้อย​สิบ​เจ็ด protons in its nucleus, and ห้า​ร้อย​สิบ​เจ็ด electrons in its shells.