Radium (Ra)vsThulium (Tm)
Thulium (Tm) has a higher Electron Affinity (99 vs 10 kJ/mol), while Thulium (Tm) has a higher Density (9 vs 6 g/cm³), while Thulium (Tm) has a higher Group (3 vs 2).
Atomic Properties
88
Atomic Number
69
226
Atomic Mass
169
7
Period
6
2
Group
3
Physical Properties
6
Density
9
1,233
Melting Point
1,818
2,010
Boiling Point
2,223
N/A
Molar Heat Capacity
27
Chemical Properties
1
Electronegativity
1
10
Electron Affinity
99
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).