Niobium (Nb)vsRhenium (Re)
Niobium (Nb) has a higher Electron Affinity (89 vs 6 kJ/mol), while Rhenium (Re) has a higher Density (21 vs 9 g/cm³), while Rhenium (Re) has a higher Atomic Mass (186 vs 93 u).
Atomic Properties
41
Atomic Number
75
93
Atomic Mass
186
5
Period
6
5
Group
7
Physical Properties
9
Density
21
2,750
Melting Point
3,459
5,017
Boiling Point
5,869
25
Molar Heat Capacity
25
Chemical Properties
2
Electronegativity
2
89
Electron Affinity
6
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).