Pentoctunium (Pou)

Pentoctunium is the systematic name of the theoretical 581. element in the periodic table with a symbol of Pou and atomic number of 581. Pentoctunium, also known as element 581, has viisi­sataa­kahdeksan­kymmentä­yksi protons in its nucleus, and viisi­sataa­kahdeksan­kymmentä­yksi electrons in its shells.