Pentquadennium (Pqe)

Pentquadennium is the systematic name of the theoretical 549वाँ element in the periodic table with a symbol of Pqe and atomic number of 549. Pentquadennium, also known as element 549, has पाँच सौ उनचास protons in its nucleus, and पाँच सौ उनचास electrons in its shells.