Septseptennium (Sse)
Septseptennium is the systematic name of the theoretical ที่ 779 element in the periodic table with a symbol of Sse and atomic number of 779. Septseptennium, also known as element 779, has เจ็ดร้อยเจ็ดสิบเก้า protons in its nucleus, and เจ็ดร้อยเจ็ดสิบเก้า electrons in its shells.