Berkelium (Bk)vsFrancium (Fr)
Francium (Fr) has a higher Electron Affinity (47 vs -165 kJ/mol), while Berkelium (Bk) has a higher Density (15 vs 2 g/cm³), while Berkelium (Bk) has a higher Melting Point (1,259 vs 300 K).
Atomic Properties
97
Atomic Number
87
247
Atomic Mass
223
7
Period
7
3
Group
1
Physical Properties
15
Density
2
1,259
Melting Point
300
2,900
Boiling Point
950
N/A
Molar Heat Capacity
N/A
Chemical Properties
1
Electronegativity
1
-165
Electron Affinity
47
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).