Francium (Fr)vsMagnesium (Mg)
Francium (Fr) has a higher Electron Affinity (47 vs -40 kJ/mol), while Francium (Fr) has a higher Atomic Mass (223 vs 24 u), while Francium (Fr) has a higher Atomic Number (87 vs 12).
Atomic Properties
87
Atomic Number
12
223
Atomic Mass
24
7
Period
3
1
Group
2
Physical Properties
2
Density
2
300
Melting Point
923
950
Boiling Point
1,363
N/A
Molar Heat Capacity
25
Chemical Properties
1
Electronegativity
1
47
Electron Affinity
-40
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).