Gold (Au)vsIridium (Ir)
Iridium (Ir) has a higher Melting Point (2,719 vs 1,337 K), while Gold (Au) has a higher Electron Affinity (223 vs 151 kJ/mol), while Iridium (Ir) has a higher Boiling Point (4,403 vs 3,243 K).
Atomic Properties
79
Atomic Number
77
197
Atomic Mass
192
6
Period
6
11
Group
9
Physical Properties
19
Density
23
1,337
Melting Point
2,719
3,243
Boiling Point
4,403
25
Molar Heat Capacity
25
Chemical Properties
3
Electronegativity
2
223
Electron Affinity
151
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).