Gadolinium (Gd)vsThulium (Tm)
Thulium (Tm) has a higher Electron Affinity (99 vs 13 kJ/mol), while Gadolinium (Gd) has a higher Boiling Point (3,273 vs 2,223 K), while Gadolinium (Gd) has a higher Molar Heat Capacity (37 vs 27 J/(mol·K)).
Atomic Properties
64
Atomic Number
69
157
Atomic Mass
169
6
Period
6
3
Group
3
Physical Properties
8
Density
9
1,585
Melting Point
1,818
3,273
Boiling Point
2,223
37
Molar Heat Capacity
27
Chemical Properties
1
Electronegativity
1
13
Electron Affinity
99
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).