Professor Martyn Poliakoff (University of Nottingham, UK) discusses the recently published PCCP paper by Pekka Pyykko on his YouTube Channel – Periodic Videos
Pekka Pyykko has theoretically extended the periodic table from 118 to 172 elements using Dirac-Fock calculations
Read the paper:
A suggested periodic table up to Z ≤ 172, based on Dirac–Fock calculations on atoms and ions
P Pykko
Phys. Chem. Chem. Phys, 2010, DOI: 10.1039/ c0cp01575j