Antimony (Sb)vsPromethium (Pm)
Antimony (Sb) has a higher Electron Affinity (101 vs 12 kJ/mol), while Antimony (Sb) has a higher Group (15 vs 3), while Antimony (Sb) has a higher Electronegativity (2 vs 1 Pauling).
Atomic Properties
51
Atomic Number
61
122
Atomic Mass
145
5
Period
6
15
Group
3
Physical Properties
7
Density
7
904
Melting Point
1,315
1,908
Boiling Point
3,273
25
Molar Heat Capacity
N/A
Chemical Properties
2
Electronegativity
1
101
Electron Affinity
12
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).