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National Institute of Standards and Technology NIST Physical Measurement Laboratory

NIST Atomic Spectra Database Levels Form

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This form provides access to NIST critically evaluated data on atomic energy levels.

Spectrum:
e.g., Fe I or Mg Li-like or Z=59 II or 198Hg I
     
 
Level Units:   Extended Search: for all levels searches of this spectrum
Format output:
Display output:
Page size:
Term ordered term energy
Energy ordered
Level information: Principal configuration
Principal term
Level Uncertainty
J g
Landé-g
Leading percentages
Bibliographic references:
Level splitting:
Te (eV)
for partition function:
 
     

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[ASD Home][Lines Query][Levels Query][List of Spectra][Ground States and Ionization Energies][Bibliography][Help] NIST Physical Measurement Laboratory