Octpentseptium (Ops)

Octpentseptium is the systematic name of the theoretical 857. element in the periodic table with a symbol of Ops and atomic number of 857. Octpentseptium, also known as element 857, has kahdeksan­sataa­viisi­kymmentä­seitsemän protons in its nucleus, and kahdeksan­sataa­viisi­kymmentä­seitsemän electrons in its shells.