Praseodymium (Pr)
Atomic Data for Praseodymium (Pr)
Atomic Number = 59
Atomic Weight = 140.90765
Reference
E95
Isotope
Mass
Abundance
Spin
Mag Moment
141
Pr
140.907647
100%
5/2
+4.3
Pr 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
3
6
s
2
4
I°
9
/
2
Ionization energy 44140 cm
-1
(5.473 eV) Ref.
WSPC78
Pr 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
3
(
4
I°
9
/
2
)6
s
(
9
/
2
,
1
/
2
)°
4
Ionization energy 85100 cm
-1
(10.55 eV) Ref.
SR65
