Pentpentennium (Ppe)
Pentpentennium is the systematic name of the theoretical 559. element in the periodic table with a symbol of Ppe and atomic number of 559. Pentpentennium, also known as element 559, has ħames mija u disgħa u ħamsin protons in its nucleus, and ħames mija u disgħa u ħamsin electrons in its shells.