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