Penthexquadium (Phq)
Penthexquadium is the systematic name of the theoretical 564ste element in the periodic table with a symbol of Phq and atomic number of 564. Penthexquadium, also known as element 564, has vyfhonderd vier-en-sestig protons in its nucleus, and vyfhonderd vier-en-sestig electrons in its shells.