Octennseptium (Oes)

Octennseptium is the systematic name of the theoretical 897'inci element in the periodic table with a symbol of Oes and atomic number of 897. Octennseptium, also known as element 897, has səkkiz yüz doxsan yeddi protons in its nucleus, and səkkiz yüz doxsan yeddi electrons in its shells.