Americium (Am)vsFrancium (Fr)
Americium (Am) has a higher Density (12 vs 2 g/cm³), while Americium (Am) has a higher Melting Point (1,449 vs 300 K), while Francium (Fr) has a higher Electron Affinity (47 vs 10 kJ/mol).
Atomic Properties
95
Atomic Number
87
243
Atomic Mass
223
7
Period
7
3
Group
1
Physical Properties
12
Density
2
1,449
Melting Point
300
2,880
Boiling Point
950
63
Molar Heat Capacity
N/A
Chemical Properties
1
Electronegativity
1
10
Electron Affinity
47
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).