Octennseptium (Oes)

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