Francium (Fr)vsStrontium (Sr)
Francium (Fr) has a higher Electron Affinity (47 vs 5 kJ/mol), while Strontium (Sr) has a higher Melting Point (1,050 vs 300 K), while Francium (Fr) has a higher Atomic Mass (223 vs 88 u).
Atomic Properties
87
Atomic Number
38
223
Atomic Mass
88
7
Period
5
1
Group
2
Physical Properties
2
Density
3
300
Melting Point
1,050
950
Boiling Point
1,650
N/A
Molar Heat Capacity
26
Chemical Properties
1
Electronegativity
1
47
Electron Affinity
5
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).