Pentquadennium (Pqe)

Pentquadennium is the systematic name of the theoretical 549ste element in the periodic table with a symbol of Pqe and atomic number of 549. Pentquadennium, also known as element 549, has vyfhonderd nege-en-veertig protons in its nucleus, and vyfhonderd nege-en-veertig electrons in its shells.