Californium Cf I

Odd levels Even levels
5f96d7s2 7H8 16 910
5f107s7p 7I8 17 459
5f96d27s 9K10 31 500 ± 1 000
5f106d7p J=7 38 146*
5f107s8p 7I8 38 226
5f97s28s 7H8 45 183
5f96d3 9K10 51 000 ± 8 000
5f107s2 5I8 0
5f106d7s 7K9 20 044
5f97s27p 7H7 24 728
5f107s8s 7I9 32 983
5f96d7s7p J=8 33 952*
5f107s7d J=8 39 081*
5f107p2 7I8 40 000 ± 4 000
5f106d2 7L10 50 000 ± 9 000
5f96d27p 9L11 58 000 ± 5 000

Ionization limit: 50 800 ± 200 cm-1 (1) S.E.

(1) : J. Sugar, J. chem. Phys., U.S.A., 1974, 60, 4103.

* This level might be not the lowest of the configuration.