Penttriennium (Pte)
Penttriennium is the systematic name of the theoretical 539. element in the periodic table with a symbol of Pte and atomic number of 539. Penttriennium, also known as element 539, has viisisataakolmekymmentäyhdeksän protons in its nucleus, and viisisataakolmekymmentäyhdeksän electrons in its shells.