Europium (Eu)
Energy Levels of Neutral Europium ( Eu I )
Configuration
Term
J
Level(cm
-1
)
Ref.
4
f
7
6
s
2
a
8
S°
7/2
0.00
MZH78
4
f
7
(
8
S°)5
d
(
9
D°)6
s
a
1
0
D°
5/2
12923.72
MZH78
7/2
13048.90
MZH78
9/2
13222.04
MZH78
11/2
13457.21
MZH78
13/2
13778.68
MZH78
4
f
7
(
8
S°)6
s
6
p
(
3
P°)
z
1
0
P
7/2
14067.86
MZH78
9/2
14563.57
MZH78
11/2
15581.58
MZH78
4
f
7
(
8
S°)5
d
(
9
D°)6
s
a
8
D°
3/2
15137.72
MZH78
5/2
15248.76
MZH78
7/2
15421.25
MZH78
9/2
15680.28
MZH78
11/2
16079.76
MZH78
4
f
7
(
8
S°)6
s
6
p
(
3
P°)
z
8
P
5/2
15890.53
MZH78
7/2
15952.31
MZH78
9/2
16611.79
MZH78
4
f
7
(
8
S°)6
s
6
p
(
3
P°)
z
6
P
7/2
17340.65
MZH78
5/2
17707.42
MZH78
3/2
17945.49
MZH78
4
f
7
(
8
S°)5
d
(
7
D°)6
s
a
6
D°
9/2
19273.24
MZH78
7/2
19364.50
MZH78
5/2
19462.05
MZH78
3/2
19543.69
MZH78
1/2
19599.16
MZH78
4
f
7
(
8
S°)5
d
(
7
D°)6
s
b
8
D°
11/2
19447.19
MZH78
9/2
19631.26
MZH78
7/2
19712.15
MZH78
5/2
19763.78
MZH78
3/2
19794.21
MZH78
4
f
7
(
8
S°)6
s
6
p
(
1
P°)
y
8
P
5/2
21444.58
MZH78
7/2
21605.17
MZH78
9/2
21761.26
MZH78
4
f
6
(
7
F)5
d
6
s
2
8
D
3/2
_
5/2
27852.90
MZH78
7/2
28827.83
MZH78
9/2
29838.59
MZH78
11/2
30819.44
MZH78
4
f
7
(
8
S°)5
d
(
9
D°)6
p
z
1
0
F
3/2
28519.97
MZH78
5/2
28667.39
MZH78
7/2
28918.17
MZH78
9/2
29186.32
MZH78
11/2
29612.69
MZH78
13/2
30211.09
MZH78
15/2
30923.71
MZH78
4
f
6
(
7
F)5
d
6
s
2
8
P
5/2
29982.50
MZH78
7/2
31116.38
MZH78
9/2
32130.25
MZH78
4
f
7
(
8
S°)5
d
(
9
D°)6
p
z
1
0
D
5/2
30945.07
MZH78
7/2
31138.11
MZH78
9/2
31382.61
MZH78
11/2
31725.93
MZH78
13/2
32117.10
MZH78
4
f
7
(
8
S°)5
d
(
9
D°)6
p
y
1
0
P
7/2
32398.25
MZH78
9/2
32596.31
MZH78
11/2
32948.41
MZH78
Eu II (
9
S°
4
)
Limit
45734.74
NRCA00