Pentquadennium (Pqe)

Pentquadennium is the systematic name of the theoretical 549'inci element in the periodic table with a symbol of Pqe and atomic number of 549. Pentquadennium, also known as element 549, has beş yüz qırx doqquz protons in its nucleus, and beş yüz qırx doqquz electrons in its shells.