Septoctseptium (Sos)

Septoctseptium is the systematic name of the theoretical 787. element in the periodic table with a symbol of Sos and atomic number of 787. Septoctseptium, also known as element 787, has յոթ­հարյուր ութսուն­յոթ protons in its nucleus, and յոթ­հարյուր ութսուն­յոթ electrons in its shells.