Pentunpentium (Pup)

Pentunpentium is the systematic name of the theoretical 515. element in the periodic table with a symbol of Pup and atomic number of 515. Pentunpentium, also known as element 515, has πεντακόσια δεκα­πέντε protons in its nucleus, and πεντακόσια δεκα­πέντε electrons in its shells.