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 viisi­sataa­seitsemän­kymmentä­yksi protons in its nucleus, and viisi­sataa­seitsemän­kymmentä­yksi electrons in its shells.