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[ASD Home][Lines Query][Levels Query][List of Spectra][Ground States and Ionization Energies][Bibliography][Help] NIST Physical Measurement Laboratory
National Institute of Standards and Technology NIST Physical Measurement Laboratory
Ion No. of levels

Fe I 847
Fe II 1028
Fe III 567
Fe IV 277
Fe V 181
 
Fe VI 94
Fe VII 155
Fe VIII 42
Fe IX 35
Fe X 65
 
Fe XI 67
Fe XII 77
Fe XIII 50
Fe XIV 72
Fe XV 72
 
Fe XVI 80
Fe XVII 67
Fe XVIII 71
Fe XIX 64
Fe XX 63
 
Fe XXI 50
Fe XXII 61
Fe XXIII 73
Fe XXIV 50
Fe XXV 44
 
Fe XXVI 26

Total: 4278