Hexquadennium (Hqe)
Hexquadennium is the systematic name of the theoretical 649. element in the periodic table with a symbol of Hqe and atomic number of 649. Hexquadennium, also known as element 649, has அறுநூறு நாற்பது ஒன்பது protons in its nucleus, and அறுநூறு நாற்பது ஒன்பது electrons in its shells.