Hexbiennium (Hbe)
Hexbiennium is the systematic name of the theoretical ที่ 629 element in the periodic table with a symbol of Hbe and atomic number of 629. Hexbiennium, also known as element 629, has หกร้อยยี่สิบเก้า protons in its nucleus, and หกร้อยยี่สิบเก้า electrons in its shells.