Octpentoctium (Opo)

Octpentoctium is the systematic name of the theoretical 858-и element in the periodic table with a symbol of Opo and atomic number of 858. Octpentoctium, also known as element 858, has осемстотин петдесет и осем protons in its nucleus, and осемстотин петдесет и осем electrons in its shells.