Copper (Cu)vsHafnium (Hf)
Copper (Cu) has a higher Electron Affinity (119 vs 17 kJ/mol), while Hafnium (Hf) has a higher Atomic Mass (178 vs 64 u), while Copper (Cu) has a higher Group (11 vs 4).
Atomic Properties
29
Atomic Number
72
64
Atomic Mass
178
4
Period
6
11
Group
4
Physical Properties
9
Density
13
1,358
Melting Point
2,506
2,835
Boiling Point
4,876
24
Molar Heat Capacity
26
Chemical Properties
2
Electronegativity
1
119
Electron Affinity
17
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).