Septpentennium (Spe)
Septpentennium is the systematic name of the theoretical 759. element in the periodic table with a symbol of Spe and atomic number of 759. Septpentennium, also known as element 759, has שבע מאות חמישים ותשע protons in its nucleus, and שבע מאות חמישים ותשע electrons in its shells.