Hexquadtrium (Hqt)

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