Americium (Am)vsIridium (Ir)
Iridium (Ir) has a higher Electron Affinity (151 vs 10 kJ/mol), while Iridium (Ir) has a higher Group (9 vs 3), while Americium (Am) has a higher Molar Heat Capacity (63 vs 25 J/(mol·K)).
Atomic Properties
95
Atomic Number
77
243
Atomic Mass
192
7
Period
6
3
Group
9
Physical Properties
12
Density
23
1,449
Melting Point
2,719
2,880
Boiling Point
4,403
63
Molar Heat Capacity
25
Chemical Properties
1
Electronegativity
2
10
Electron Affinity
151
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).