Calcium (Ca)vsHelium (He)
Calcium (Ca) has a higher Electron Affinity (2 vs -48 kJ/mol), while Calcium (Ca) has a higher Melting Point (1,115 vs 1 K), while Calcium (Ca) has a higher Boiling Point (1,757 vs 4 K).
Atomic Properties
20
Atomic Number
2
40
Atomic Mass
4
4
Period
1
2
Group
18
Physical Properties
2
Density
0
1,115
Melting Point
1
1,757
Boiling Point
4
26
Molar Heat Capacity
N/A
Chemical Properties
1
Electronegativity
N/A
2
Electron Affinity
-48
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).