Francium (Fr)vsMercury (Hg)
Francium (Fr) has a higher Electron Affinity (47 vs -48 kJ/mol), while Mercury (Hg) has a higher Group (12 vs 1), while Mercury (Hg) has a higher Density (14 vs 2 g/cm³).
Atomic Properties
87
Atomic Number
80
223
Atomic Mass
201
7
Period
6
1
Group
12
Physical Properties
2
Density
14
300
Melting Point
234
950
Boiling Point
630
N/A
Molar Heat Capacity
28
Chemical Properties
1
Electronegativity
2
47
Electron Affinity
-48
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).