Hexseptennium (Hse)
Hexseptennium is the systematic name of the theoretical ที่ 679 element in the periodic table with a symbol of Hse and atomic number of 679. Hexseptennium, also known as element 679, has หกร้อยเจ็ดสิบเก้า protons in its nucleus, and หกร้อยเจ็ดสิบเก้า electrons in its shells.