Pentseptseptium (Pss)

Pentseptseptium is the systematic name of the theoretical ที่ 577 element in the periodic table with a symbol of Pss and atomic number of 577. Pentseptseptium, also known as element 577, has ห้า​ร้อย​เจ็ด​สิบ​เจ็ด protons in its nucleus, and ห้า​ร้อย​เจ็ด​สิบ​เจ็ด electrons in its shells.