Thulium (Tm)
Energy Levels of Singly Ionized Thulium ( Tm II )
Configuration
Term
J
Level(cm
-1
)
Ref.
4
f
1
3
(
2
F°
7
/
2
)6
s
1
/
2
(
7
/
2
,
1
/
2
)°
4
0.00
MZH78
3
236.95
MZH78
4
f
1
3
(
2
F°
5
/
2
)6
s
1
/
2
(
5
/
2
,
1
/
2
)°
2
8769.68
MZH78
3
8957.47
MZH78
4
f
1
2
(
3
H)6
s
2
3
H
6
12457.29
MZH78
5
20619.05
MZH78
4
24932.00
MZH78
4
f
1
2
(
3
H
6
)5
d
6
s
(
3
D
1
)
(6,1)
5
16567.47
MZH78
7
19619.08
MZH78
6
22355.43
MZH78
4
f
1
3
(
2
F°
7
/
2
)5
d
3
/
2
(
7
/
2
,
3
/
2
)°
2
17624.65
MZH78
5
20228.75
MZH78
3
21713.74
MZH78
4
22457.51
MZH78
4
f
1
2
(
3
F)6
s
2
3
F
4
17974.30
MZH78
3
26578.77
MZH78
2
_
4
f
1
2
(
3
H
6
)5
d
6
s
(
3
D
2
)
(6,2)
4
18291.37
MZH78
6
19526.82
MZH78
8
19682.97
MZH78
7
22052.39
MZH78
4
f
1
2
(
3
H
6
)5
d
6
s
(
3
D
3
)
(6,3)
9
20465.82
MZH78
3
21608.26
MZH78
8
23024.29
MZH78
5
23768.84
MZH78
6
23904.43
MZH78
7
23961.60
MZH78
4
f
1
2
5
d
6
s
5
21021.98
MZH78
4
f
1
3
(
2
F°
7
/
2
)5
d
5
/
2
(
7
/
2
,
5
/
2
)°
6
21133.68
MZH78
2
21978.77
MZH78
1
22141.96
MZH78
4
23524.09
MZH78
3
23934.73
MZH78
5
24273.20
MZH78
4
f
1
2
5
d
6
s
4
22308.82
MZH78
4
f
1
2
5
d
6
s
4
23803.28
MZH78
4
f
1
3
6
p
3
25980.02
MZH78
4
f
1
2
5
d
6
s
4
26574.66
MZH78
4
f
1
2
5
d
6
s
4
27009.39
MZH78
4
f
1
2
5
d
6
s
4
27254.42
MZH78
4
f
1
2
5
d
6
s
5
28875.12
MZH78
4
f
1
2
5
d
6
s
4
29183.39
MZH78
4
f
1
3
6
p
2
29285.72
MZH78
4
f
1
2
5
d
6
s
3
29424.98
MZH78
4
f
1
2
5
d
6
s
2
29967.17
MZH78
4
f
1
2
5
d
6
s
5
31926.82
MZH78
Tm III (
2
F°
7
/
2
)
Limit
92700
SR65
Thulium (Tm) 
