Argon (Ar)vsThulium (Tm)
Thulium (Tm) has a higher Electron Affinity (99 vs -96 kJ/mol), while Thulium (Tm) has a higher Boiling Point (2,223 vs 87 K), while Thulium (Tm) has a higher Melting Point (1,818 vs 84 K).
Atomic Properties
18
Atomic Number
69
40
Atomic Mass
169
3
Period
6
18
Group
3
Physical Properties
2
Density
9
84
Melting Point
1,818
87
Boiling Point
2,223
N/A
Molar Heat Capacity
27
Chemical Properties
N/A
Electronegativity
1
-96
Electron Affinity
99
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).