Pentseptunium (Psu)

Pentseptunium is the systematic name of the theoretical 571. element in the periodic table with a symbol of Psu and atomic number of 571. Pentseptunium, also known as element 571, has fem­hundrede og en­og­halvfjerds protons in its nucleus, and fem­hundrede og en­og­halvfjerds electrons in its shells.