Octpenthexium (Oph)
Octpenthexium is the systematic name of the theoretical ٨٥٦. element in the periodic table with a symbol of Oph and atomic number of 856. Octpenthexium, also known as element 856, has ثمانية مائة وستة وخمسون protons in its nucleus, and ثمانية مائة وستة وخمسون electrons in its shells.