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 kahdeksan­sataa­yhdeksän­kymmentä­seitsemän protons in its nucleus, and kahdeksan­sataa­yhdeksän­kymmentä­seitsemän electrons in its shells.