Hexpentennium (Hpe)

Hexpentennium is the systematic name of the theoretical 659-и element in the periodic table with a symbol of Hpe and atomic number of 659. Hexpentennium, also known as element 659, has шестстотин петдесет и девет protons in its nucleus, and шестстотин петдесет и девет electrons in its shells.