Europium (Eu)
Energy Levels of Singly Ionized Europium ( Eu II )
Configuration
Term
J
Level(cm
-1
)
Ref.
4
f
7
(
8
S°)6
s
a
9
S°
4
0.00
MZH78
4
f
7
(
8
S°)6
s
a
7
S°
3
1669.21
MZH78
4
f
7
(
8
S°)5
d
a
9
D°
2
9923.00
MZH78
3
10081.65
MZH78
4
10312.82
MZH78
5
10643.48
MZH78
6
11128.22
MZH78
4
f
7
(
8
S°)5
d
a
7
D°
5
16860.72
MZH78
4
17004.06
MZH78
3
17140.87
MZH78
2
17247.67
MZH78
1
17324.66
MZH78
4
f
7
(
8
S°
7
/
2
)6
p
1
/
2
(
7
/
2
,
1
/
2
)
3
23774.28
MZH78
4
24207.86
MZH78
4
f
7
(
8
S°
7
/
2
)6
p
3
/
2
(
7
/
2
,
3
/
2
)
5
26172.83
MZH78
4
26838.50
MZH78
3
27104.07
MZH78
2
27256.35
MZH78
4
f
6
(
7
F)5
d
(
8
D)6
s
z
9
D
2
30189.31
MZH78
3
31500.82
MZH78
4
32486.10
MZH78
5
33420.20
MZH78
6
34764.97
MZH78
101
4
33779.95
MZH78
102
3
33919.70
MZH78
103
2
33944.49
MZH78
4
f
6
(
7
F)5
d
(
8
P)6
s
y
9
P
3
34393.57
MZH78
4
35527.02
MZH78
5
36648.95
MZH78
Eu III (
8
S°
7
/
2
)
Limit
90700
SR65