Hexoctunium (Hou)
Hexoctunium is the systematic name of the theoretical ۶۸۱. element in the periodic table with a symbol of Hou and atomic number of 681. Hexoctunium, also known as element 681, has ششصد و هشتاد و یک protons in its nucleus, and ششصد و هشتاد و یک electrons in its shells.