Hexquadtrium (Hqt)

Hexquadtrium is the systematic name of the theoretical 643-и element in the periodic table with a symbol of Hqt and atomic number of 643. Hexquadtrium, also known as element 643, has шестстотин четиресет и три protons in its nucleus, and шестстотин четиресет и три electrons in its shells.