Pentoctennium (Poe)

Pentoctennium is the systematic name of the theoretical 589. element in the periodic table with a symbol of Poe and atomic number of 589. Pentoctennium, also known as element 589, has viisi­sataa­kahdeksan­kymmentä­yhdeksän protons in its nucleus, and viisi­sataa­kahdeksan­kymmentä­yhdeksän electrons in its shells.