Pentquadbium (Pqb)

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