Calcium (Ca)vsLanthanum (La)
Lanthanum (La) has a higher Electron Affinity (53 vs 2 kJ/mol), while Lanthanum (La) has a higher Density (6 vs 2 g/cm³), while Lanthanum (La) has a higher Atomic Mass (139 vs 40 u).
Atomic Properties
20
Atomic Number
57
40
Atomic Mass
139
4
Period
6
2
Group
3
Physical Properties
2
Density
6
1,115
Melting Point
1,193
1,757
Boiling Point
3,737
26
Molar Heat Capacity
27
Chemical Properties
1
Electronegativity
1
2
Electron Affinity
53
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).