Penthexquadium (Phq)

Penthexquadium is the systematic name of the theoretical 564:e element in the periodic table with a symbol of Phq and atomic number of 564. Penthexquadium, also known as element 564, has fem­hundra­sextio­fyra protons in its nucleus, and fem­hundra­sextio­fyra electrons in its shells.