Hexennennium (Hee)

Hexennennium is the systematic name of the theoretical 699. element in the periodic table with a symbol of Hee and atomic number of 699. Hexennennium, also known as element 699, has шістсот девʼяносто девʼять protons in its nucleus, and шістсот девʼяносто девʼять electrons in its shells.