Hextriennium (Hte)

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