Atomic structure calculations 2 Atoms 2 Binding energy 2 Dirac equation 2 Dirac equations 2 Electron binding energy 2 Experimental values 2 Fermi Energies 2 Fermi level 2 Inelastic collision 2 Inelastic collisions Isolated atoms 2 Linear equations 2 Plasma collision processes 2 Relativistic atomic structure 2 Theoretical values 2 Valence shells 2