Cerium (Ce)vsErbium (Er)
Cerium (Ce) has a higher Electron Affinity (55 vs 30 kJ/mol), while Erbium (Er) has a higher Melting Point (1,802 vs 1,068 K), while Erbium (Er) has a higher Density (9 vs 7 g/cm³).
Atomic Properties
58
Atomic Number
68
140
Atomic Mass
167
6
Period
6
3
Group
3
Physical Properties
7
Density
9
1,068
Melting Point
1,802
3,716
Boiling Point
3,141
27
Molar Heat Capacity
28
Chemical Properties
1
Electronegativity
1
55
Electron Affinity
30
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).