Argon (Ar)vsRubidium (Rb)
Rubidium (Rb) has a higher Electron Affinity (47 vs -96 kJ/mol), while Argon (Ar) has a higher Group (18 vs 1), while Rubidium (Rb) has a higher Boiling Point (961 vs 87 K).
Atomic Properties
18
Atomic Number
37
40
Atomic Mass
85
3
Period
5
18
Group
1
Physical Properties
2
Density
2
84
Melting Point
312
87
Boiling Point
961
N/A
Molar Heat Capacity
31
Chemical Properties
N/A
Electronegativity
1
-96
Electron Affinity
47
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).