Argon (Ar)vsIridium (Ir)
Iridium (Ir) has a higher Electron Affinity (151 vs -96 kJ/mol), while Iridium (Ir) has a higher Boiling Point (4,403 vs 87 K), while Iridium (Ir) has a higher Melting Point (2,719 vs 84 K).
Atomic Properties
18
Atomic Number
77
40
Atomic Mass
192
3
Period
6
18
Group
9
Physical Properties
2
Density
23
84
Melting Point
2,719
87
Boiling Point
4,403
N/A
Molar Heat Capacity
25
Chemical Properties
N/A
Electronegativity
2
-96
Electron Affinity
151
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).