Pentpentquadium (Ppq)
Pentpentquadium is the systematic name of the theoretical 554. element in the periodic table with a symbol of Ppq and atomic number of 554. Pentpentquadium, also known as element 554, has пятьсот пятьдесят четыре protons in its nucleus, and пятьсот пятьдесят четыре electrons in its shells.