QED and relativistic corrections in superheavy elements

In this paper we review the different relativistic and QED (quantum electrodynamics) contributions to energies, ionic radii, transition probabilities and Lande g-factors in super-heavy elements, with the help of the Multi Configuration Dirac-Fock method (MCDF). The effects of taking into account the Breit interaction to all orders by including it in the self-consistent field process are demonstrated. State of the art radiative corrections are included in the calculation and discussed. We also study the non-relativistic limit of MCDF calculation and find that the non-relativistic offset can be unexpectedly large. (authors)