Francium (Fr)vsYtterbium (Yb)
Francium (Fr) has a higher Electron Affinity (47 vs -2 kJ/mol), while Ytterbium (Yb) has a higher Density (7 vs 2 g/cm³), while Ytterbium (Yb) has a higher Melting Point (1,097 vs 300 K).
Atomic Properties
87
Atomic Number
70
223
Atomic Mass
173
7
Period
6
1
Group
3
Physical Properties
2
Density
7
300
Melting Point
1,097
950
Boiling Point
1,469
N/A
Molar Heat Capacity
27
Chemical Properties
1
Electronegativity
1
47
Electron Affinity
-2
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).