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NIST Ground Levels and Ionization Energies for the Neutral Atoms - SRD 111
Data for ground state electron configurations and ionization energies for the neutral atoms (Z = 1-104) including references. Version 2.0. -
NIST Atomic Energy Levels and Spectra Bibliographic Database
References contained in this database are from Bibliography on Atomic Energy Levels and Spectra, NBS Special Publication 363 and Supplements, as well as current references since...
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