The NIST compilation of ionization potentials revisited (I): From He-like to Xe-like ions
Abstract
The National Institute of Standards and Technology (NIST) database on ionization potentials for neutral atoms and ions is examined. For each isoelectronic sequence, we construct a regularized perturbative series that exactly matches the large-Z and Z≈ N-1 regions. Comparison of the NIST data with this series allows the identification of problematic values in the reported data.
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