Octpenthexium (Oph)

Octpenthexium is the systematic name of the theoretical 856e element in the periodic table with a symbol of Oph and atomic number of 856. Octpenthexium, also known as element 856, has acht­honderd­zes­en­vijftig protons in its nucleus, and acht­honderd­zes­en­vijftig electrons in its shells.