Septseptseptium (Sss)

Septseptseptium is the systematic name of the theoretical thứ 777 element in the periodic table with a symbol of Sss and atomic number of 777. Septseptseptium, also known as element 777, has bảy trăm bảy mươi bảy protons in its nucleus, and bảy trăm bảy mươi bảy electrons in its shells.