Pentquadennium (Pqe)

Pentquadennium is the systematic name of the theoretical 549. element in the periodic table with a symbol of Pqe and atomic number of 549. Pentquadennium, also known as element 549, has חמש מאות ארבעים ותשע protons in its nucleus, and חמש מאות ארבעים ותשע electrons in its shells.