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 penki šimtai keturiasdešimt du protons in its nucleus, and penki šimtai keturiasdešimt du electrons in its shells.