Iridium (Ir)vsManganese (Mn)
Iridium (Ir) has a higher Electron Affinity (151 vs -50 kJ/mol), while Iridium (Ir) has a higher Atomic Mass (192 vs 55 u), while Iridium (Ir) has a higher Density (23 vs 7 g/cm³).
Atomic Properties
77
Atomic Number
25
192
Atomic Mass
55
6
Period
4
9
Group
7
Physical Properties
23
Density
7
2,719
Melting Point
1,519
4,403
Boiling Point
2,334
25
Molar Heat Capacity
26
Chemical Properties
2
Electronegativity
2
151
Electron Affinity
-50
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).