Septoctoctium (Soo)
Septoctoctium is the systematic name of the theoretical 788'inci element in the periodic table with a symbol of Soo and atomic number of 788. Septoctoctium, also known as element 788, has yeddi yüz səqsən səkkiz protons in its nucleus, and yeddi yüz səqsən səkkiz electrons in its shells.