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 шістсот пʼятдесят девʼять protons in its nucleus, and шістсот пʼятдесят девʼять electrons in its shells.