Septquadennium (Sqe)

Septquadennium is the systematic name of the theoretical 749. element in the periodic table with a symbol of Sqe and atomic number of 749. Septquadennium, also known as element 749, has שבע מאות ארבעים ותשע protons in its nucleus, and שבע מאות ארבעים ותשע electrons in its shells.