Hexpentennium (Hpe)

Hexpentennium is the systematic name of the theoretical 659ste element in the periodic table with a symbol of Hpe and atomic number of 659. Hexpentennium, also known as element 659, has seshonderd nege-en-vyftig protons in its nucleus, and seshonderd nege-en-vyftig electrons in its shells.