Argon (Ar)vsIodine (I)
Iodine (I) has a higher Electron Affinity (295 vs -96 kJ/mol), while Iodine (I) has a higher Boiling Point (457 vs 87 K), while Iodine (I) has a higher Melting Point (387 vs 84 K).
Atomic Properties
18
Atomic Number
53
40
Atomic Mass
127
3
Period
5
18
Group
17
Physical Properties
2
Density
5
84
Melting Point
387
87
Boiling Point
457
N/A
Molar Heat Capacity
N/A
Chemical Properties
N/A
Electronegativity
3
-96
Electron Affinity
295
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).