Hexhexennium (Hhe)

Hexhexennium is the systematic name of the theoretical ٦٦٩. element in the periodic table with a symbol of Hhe and atomic number of 669. Hexhexennium, also known as element 669, has ستة مائة وتسعة وستون protons in its nucleus, and ستة مائة وتسعة وستون electrons in its shells.