Pentoctquadium (Poq)
Pentoctquadium is the systematic name of the theoretical 584. element in the periodic table with a symbol of Poq and atomic number of 584. Pentoctquadium, also known as element 584, has пятьсот восемьдесят четыре protons in its nucleus, and пятьсот восемьдесят четыре electrons in its shells.