Americium (Am)vsErbium (Er)
Erbium (Er) has a higher Electron Affinity (30 vs 10 kJ/mol), while Americium (Am) has a higher Molar Heat Capacity (63 vs 28 J/(mol·K)), while Americium (Am) has a higher Atomic Mass (243 vs 167 u).
Atomic Properties
95
Atomic Number
68
243
Atomic Mass
167
7
Period
6
3
Group
3
Physical Properties
12
Density
9
1,449
Melting Point
1,802
2,880
Boiling Point
3,141
63
Molar Heat Capacity
28
Chemical Properties
1
Electronegativity
1
10
Electron Affinity
30
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).