Hexpentennium (Hpe)
Hexpentennium is the systematic name of the theoretical 659. element in the periodic table with a symbol of Hpe and atomic number of 659. Hexpentennium, also known as element 659, has שש מאות חמישים ותשע protons in its nucleus, and שש מאות חמישים ותשע electrons in its shells.