Hexquadunium (Hqu)
Hexquadunium is the systematic name of the theoretical thứ 641 element in the periodic table with a symbol of Hqu and atomic number of 641. Hexquadunium, also known as element 641, has sáu trăm bốn mươi mốt protons in its nucleus, and sáu trăm bốn mươi mốt electrons in its shells.