Thorium (Th)
Energy Levels of Neutral Thorium ( Th I )
Configuration
Term
J
Level(cm
-1
)
Ref.
6
d
2
7
s
2
3
F
2
0.000
BW92b
3
2869.259
BW92b
4
4961.659
BW92b
6
d
2
7
s
2
3
P
0
2558.057
BW92b
2
3687.987
BW92b
1
3865.475
BW92b
6
d
3
(
4
F)7
s
5
F
1
5563.142
BW92b
2
6362.396
BW92b
3
7502.288
BW92b
4
8800.251
BW92b
5
9804.807
BW92b
6
d
2
7
s
2
1
D
2
7280.124
BW92b
5
f
6
d
7
s
2
3
H°
4
7795.275
BW92b
5
11197.031
BW92b
6
14481.869
BW92b
6
d
2
7
s
2
1
G
4
8111.005
BW92b
5
f
6
d
7
s
2
3
F°
2
8243.601
BW92b
3
11241.730
BW92b
4
14206.917
BW92b
5
f
6
d
7
s
2
1
G°
4
10414.136
BW92b
5
f
6
d
7
s
2
3
G°
3
10526.544
BW92b
4
13175.113
BW92b
5
15490.077
BW92b
6
d
7
s
2
7
p
3
F°
2
10783.154
BW92b
3
13945.307
BW92b
6
d
3
(
4
P)7
s
5
P
1
11601.031
BW92b
2
11802.934
BW92b
3
12847.971
BW92b
5
f
6
d
7
s
2
3
D°
1
17354.639
BW92b
6
d
2
7
s
7
p
5
F°
4
19948.395
BW92b
5
f
6
d
7
s
2
3
D°
3
21165.096
BW92b
6
d
2
7
s
7
p
5
P°
1
21668.956
BW92b
5
f
6
d
7
s
7
p
5
I
4
22098.187
BW92b
5
23277.387
BW92b
6
26997.247
BW92b
°
2
24307.749
BW92b
°
2
26113.270
BW92b
6
d
2
7
s
7
p
3
D°
1
26287.049
BW92b
6
d
2
7
s
7
p
3
G°
3
26878.162
BW92b
4
27521.527
BW92b
°
2
27784.366
BW92b
°
2
29853.143
BW92b
°
4
30160.003
BW92b
°
3
30255.452
BW92b
5
f
6
d
7
s
7
p
3
H
4
33459.180
BW92b
°
5
34182.708
BW92b
°
5
35081.017
BW92b
Th II (
3
/
2
)
Limit
50867
KDEE97