Californium (Cf)vsFrancium (Fr)
Francium (Fr) has a higher Electron Affinity (47 vs -97 kJ/mol), while Californium (Cf) has a higher Density (15 vs 2 g/cm³), while Californium (Cf) has a higher Melting Point (1,173 vs 300 K).
Atomic Properties
98
Atomic Number
87
251
Atomic Mass
223
7
Period
7
3
Group
1
Physical Properties
15
Density
2
1,173
Melting Point
300
1,743
Boiling Point
950
N/A
Molar Heat Capacity
N/A
Chemical Properties
1
Electronegativity
1
-97
Electron Affinity
47
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).