Pentquadnilium (Pqn)

Pentquadnilium is the systematic name of the theoretical 540वाँ element in the periodic table with a symbol of Pqn and atomic number of 540. Pentquadnilium, also known as element 540, has पाँच सौ चालीस protons in its nucleus, and पाँच सौ चालीस electrons in its shells.