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 ħames mija u tnejn u erbgħin protons in its nucleus, and ħames mija u tnejn u erbgħin electrons in its shells.