Septseptseptium (Sss)

Septseptseptium is the systematic name of the theoretical ۷۷۷. element in the periodic table with a symbol of Sss and atomic number of 777. Septseptseptium, also known as element 777, has هفتصد و هفتاد و هفت protons in its nucleus, and هفتصد و هفتاد و هفت electrons in its shells.