Penthexquadium (Phq)
Penthexquadium is the systematic name of the theoretical 564. element in the periodic table with a symbol of Phq and atomic number of 564. Penthexquadium, also known as element 564, has ħames mija u erbgħa u sittin protons in its nucleus, and ħames mija u erbgħa u sittin electrons in its shells.