Septoctunium (Sou)

Septoctunium is the systematic name of the theoretical ٧٨١. element in the periodic table with a symbol of Sou and atomic number of 781. Septoctunium, also known as element 781, has سبعة مائة وواحد وثمانون protons in its nucleus, and سبعة مائة وواحد وثمانون electrons in its shells.