Pentquadbium (Pqb)

Pentquadbium is the systematic name of the theoretical 542. element in the periodic table with a symbol of Pqb and atomic number of 542. Pentquadbium, also known as element 542, has öt­száz­negyven­kettő protons in its nucleus, and öt­száz­negyven­kettő electrons in its shells.