Cerium (Ce)
Atomic Data for Cerium (Ce)
Atomic Number = 58
Atomic Weight = 140.115
Reference
E95
Isotope
Mass
Abundance
Spin
Mag Moment
136
Ce
135.907140
0.19%
0
138
Ce
137.905985
0.25%
0
140
Ce
139.905433
88.48%
0
142
Ce
141.909241
11.08%
0
Ce I Ground State (1
s
2
2
s
2
2
p
6
3
s
2
3
p
6
3
d
1
0
4
s
2
4
p
6
4
d
1
0
5
s
2
5
p
6
)4
f
5
d
6
s
2
1
G°
4
Ionization energy 44672 cm
-1
(5.5387 eV) Ref.
WSPC78
Ce II Ground State (1
s
2
2
s
2
2
p
6
3
s
2
3
p
6
3
d
1
0
4
s
2
4
p
6
4
d
1
0
5
s
2
5
p
6
)4
f
5
d
2
4
H°
7
/
2
Ionization energy 87500 cm
-1
(10.85 eV) Ref.
SR65
