Cobalt (Co)vsTantalum (Ta)
Tantalum (Ta) has a higher Atomic Mass (181 vs 59 u), while Tantalum (Ta) has a higher Atomic Number (73 vs 27), while Cobalt (Co) has a higher Electron Affinity (64 vs 31 kJ/mol).
Atomic Properties
27
Atomic Number
73
59
Atomic Mass
181
4
Period
6
9
Group
5
Physical Properties
9
Density
17
1,768
Melting Point
3,290
3,200
Boiling Point
5,731
25
Molar Heat Capacity
25
Chemical Properties
2
Electronegativity
2
64
Electron Affinity
31
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).