Thallium (Tl)vsThulium (Tm)
Thallium (Tl) has a higher Group (13 vs 3), while Thulium (Tm) has a higher Melting Point (1,818 vs 577 K), while Thulium (Tm) has a higher Electron Affinity (99 vs 36 kJ/mol).
Atomic Properties
81
Atomic Number
69
204
Atomic Mass
169
6
Period
6
13
Group
3
Physical Properties
12
Density
9
577
Melting Point
1,818
1,746
Boiling Point
2,223
26
Molar Heat Capacity
27
Chemical Properties
2
Electronegativity
1
36
Electron Affinity
99
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).