Astatine (At)vsIridium (Ir)
Iridium (Ir) has a higher Boiling Point (4,403 vs 610 K), while Iridium (Ir) has a higher Melting Point (2,719 vs 575 K), while Iridium (Ir) has a higher Density (23 vs 6 g/cm³).
Atomic Properties
85
Atomic Number
77
210
Atomic Mass
192
6
Period
6
17
Group
9
Physical Properties
6
Density
23
575
Melting Point
2,719
610
Boiling Point
4,403
N/A
Molar Heat Capacity
25
Chemical Properties
2
Electronegativity
2
233
Electron Affinity
151
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).