SCCJ Cafe -Season 3-Theoretical Chemistry in Nordic (2)“The Extended Periodic Table − Pyykkö Model”

Abstract

The periodic table (PT) is used in all natural science areas. It is a compact and approximate way to summarize both the electronic shell structure of individual atoms, and other basic properties. Pyykkö uncovered the extended periodic table from atomic number 1 to 172 by Extended Average Level Dirac-Fock calculations in 2010. In particular the 8p* shell calculations revealed the place of element 139 and 140 in PT. In this text of SCCJ Cafe- Season 3, PT is discussed. Also, the culture of quantum chemistry and life in Finland are briefly touched upon.