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Federal
NIST Ground Levels and Ionization Energies for the Neutral Atoms - SRD 111
National Institute of Standards and Technology —
Data for ground state electron configurations and ionization energies for the neutral atoms (Z = 1-104) including references. Version 2.0. -
Federal
NIST Database of Cross Sections for Inner-Shell Ionization by Electron or Positron Impact - SRD 164
National Institute of Standards and Technology —
The NIST Database of Cross Sections for Inner-Shell Ionization by Electron or Positron Impact provides cross sections for ionization of the K shell and of the L and M...