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 πεντακόσια εβδομήντα εννέα protons in its nucleus, and πεντακόσια εβδομήντα εννέα electrons in its shells.