Hexquadpentium (Hqp)
Hexquadpentium is the systematic name of the theoretical 645. element in the periodic table with a symbol of Hqp and atomic number of 645. Hexquadpentium, also known as element 645, has šesťsto štyridsaťpäť protons in its nucleus, and šesťsto štyridsaťpäť electrons in its shells.