Hexpentoctium (Hpo)

Hexpentoctium is the systematic name of the theoretical 658. element in the periodic table with a symbol of Hpo and atomic number of 658. Hexpentoctium, also known as element 658, has seks­hundrað­og­fimmti­átta protons in its nucleus, and seks­hundrað­og­fimmti­átta electrons in its shells.