Hexhexunium (Hhu)

Hexhexunium is the systematic name of the theoretical ที่ 661 element in the periodic table with a symbol of Hhu and atomic number of 661. Hexhexunium, also known as element 661, has หก​ร้อย​หก​สิบ​เอ็ด protons in its nucleus, and หก​ร้อย​หก​สิบ​เอ็ด electrons in its shells.