Francium (Fr)vsKrypton (Kr)
Francium (Fr) has a higher Electron Affinity (47 vs -96 kJ/mol), while Krypton (Kr) has a higher Group (18 vs 1), while Francium (Fr) has a higher Boiling Point (950 vs 120 K).
Atomic Properties
87
Atomic Number
36
223
Atomic Mass
84
7
Period
4
1
Group
18
Physical Properties
2
Density
4
300
Melting Point
116
950
Boiling Point
120
N/A
Molar Heat Capacity
N/A
Chemical Properties
1
Electronegativity
3
47
Electron Affinity
-96
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).