Septunseptium (Sus)
Septunseptium is the systematic name of the theoretical ที่ 717 element in the periodic table with a symbol of Sus and atomic number of 717. Septunseptium, also known as element 717, has เจ็ดร้อยสิบเจ็ด protons in its nucleus, and เจ็ดร้อยสิบเจ็ด electrons in its shells.