Pentquadbium (Pqb)

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