Iridium (Ir)vsLawrencium (Lr)
Iridium (Ir) has a higher Electron Affinity (151 vs -30 kJ/mol), while Iridium (Ir) has a higher Group (9 vs 3), while Iridium (Ir) has a higher Electronegativity (2 vs 1 Pauling).
Atomic Properties
77
Atomic Number
103
192
Atomic Mass
266
6
Period
7
9
Group
3
Physical Properties
23
Density
N/A
2,719
Melting Point
1,900
4,403
Boiling Point
N/A
25
Molar Heat Capacity
N/A
Chemical Properties
2
Electronegativity
1
151
Electron Affinity
-30
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).