Pentseptennium (Pse)

Pentseptennium is the systematic name of the theoretical 579. element in the periodic table with a symbol of Pse and atomic number of 579. Pentseptennium, also known as element 579, has fimm­hundrað­og­sjeyti­níggju protons in its nucleus, and fimm­hundrað­og­sjeyti­níggju electrons in its shells.