Uranium U IV
Odd levels
Even levels
5f
3
4
I
9/2
0
5f6d
2
4
H
7/2
65 000 ± 10 000
5f
2
7p
4
I
9/2
89 000 ± 9 000
5f
2
6d
4
K
11/2
30 000 ± 6 000
5f
2
7s
4
H
7/2
50 000 ± 7 000
Ionization limit
:
296 0
00
± 8 000 cm
-1
(3)
E.I.
250 983
cm
-1
(4
)
A.T.
244 611
cm
-1
(5
)
A.T.
References:
(3)
: A.M. Emel'yanov, Y.S. Khodeev and L.N. Gorokhov, Teplofiz. vysokikh Temp., S.S.S.R., 1970,
8
, 508-13.
(4)
: S.L. Thomson and H.S. Lauson, 1972, Sandia Lab., NM, U.S.A., report SC-RR-710713.
(5)
: K. Rashid, M.Z. Saadi and M. Yasin, At. Data Nucl. Data Tables, U.S.A., 1988,
40
, 365-78.