Argon (Ar)vsCalcium (Ca)
Calcium (Ca) has a higher Electron Affinity (2 vs -96 kJ/mol), while Calcium (Ca) has a higher Boiling Point (1,757 vs 87 K), while Calcium (Ca) has a higher Melting Point (1,115 vs 84 K).
Atomic Properties
18
Atomic Number
20
40
Atomic Mass
40
3
Period
4
18
Group
2
Physical Properties
2
Density
2
84
Melting Point
1,115
87
Boiling Point
1,757
N/A
Molar Heat Capacity
26
Chemical Properties
N/A
Electronegativity
1
-96
Electron Affinity
2
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).