Thallium (Tl)
Atomic Data for Thallium (Tl)
Atomic Number = 81
Atomic Weight = 204.3833
Reference
E95
Isotope
Mass
Abundance
Spin
Mag Moment
203
Tl
202.972320
29.52%
1/2
+1.6223
205
Tl
204.974401
70.48%
1/2
+1.6382
Tl 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
4
f
1
4
5
s
2
5
p
6
5
d
1
0
6
s
2
6
p
2
P
1
/
2
Ionization energy 49265.91 cm
-1
(6.108194 eV) Ref.
BC85
Tl 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
4
f
1
4
5
s
2
5
p
6
5
d
1
0
6
s
2
1
S
0
Ionization energy 164765 cm
-1
(20.4283 eV) Ref.
M58
