Thulium (Tm)
Atomic Data for Thulium (Tm)
Atomic Number = 69
Atomic Weight = 168.93421
Reference
E95
Isotope
Mass
Abundance
Spin
Mag Moment
169
Tm
168.93421
100%
1/2
-0.2316
Tm 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
1
3
6
s
2
2
F°
7
/
2
Ionization energy 49879.8 cm
-1
(6.18431 eV) Ref.
C71
Tm 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
1
3
(
2
F°
7
/
2
)6
s
(
7
/
2
,
1
/
2
)°
4
Ionization energy 97200 cm
-1
(12.05 eV) Ref.
SR65
