Copper (Cu)vsSamarium (Sm)
Copper (Cu) has a higher Electron Affinity (119 vs 16 kJ/mol), while Copper (Cu) has a higher Group (11 vs 3), while Samarium (Sm) has a higher Atomic Mass (150 vs 64 u).
Atomic Properties
29
Atomic Number
62
64
Atomic Mass
150
4
Period
6
11
Group
3
Physical Properties
9
Density
8
1,358
Melting Point
1,345
2,835
Boiling Point
2,173
24
Molar Heat Capacity
30
Chemical Properties
2
Electronegativity
1
119
Electron Affinity
16
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).