Samarium (Sm)vsYttrium (Y)
Yttrium (Y) has a higher Electron Affinity (30 vs 16 kJ/mol), while Samarium (Sm) has a higher Atomic Mass (150 vs 89 u), while Samarium (Sm) has a higher Density (8 vs 4 g/cm³).
Atomic Properties
62
Atomic Number
39
150
Atomic Mass
89
6
Period
5
3
Group
3
Physical Properties
8
Density
4
1,345
Melting Point
1,799
2,173
Boiling Point
3,203
30
Molar Heat Capacity
27
Chemical Properties
1
Electronegativity
1
16
Electron Affinity
30
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).