Octennseptium (Oes)

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