Hextriennium (Hte)

Hextriennium is the systematic name of the theoretical 639. element in the periodic table with a symbol of Hte and atomic number of 639. Hextriennium, also known as element 639, has sechs­hundert­neun­und­dreißig protons in its nucleus, and sechs­hundert­neun­und­dreißig electrons in its shells.