Octpentoctium (Opo)

Octpentoctium is the systematic name of the theoretical 858-ші element in the periodic table with a symbol of Opo and atomic number of 858. Octpentoctium, also known as element 858, has сегіз жүз елу сегіз protons in its nucleus, and сегіз жүз елу сегіз electrons in its shells.