Pentquadtrium (Pqt)
Pentquadtrium is the systematic name of the theoretical 543. element in the periodic table with a symbol of Pqt and atomic number of 543. Pentquadtrium, also known as element 543, has ஐநூறு நாற்பது மூன்று protons in its nucleus, and ஐநூறு நாற்பது மூன்று electrons in its shells.