Beryllium (Be)vsCobalt (Co)
Cobalt (Co) has a higher Electron Affinity (64 vs -48 kJ/mol), while Cobalt (Co) has a higher Atomic Number (27 vs 4), while Cobalt (Co) has a higher Atomic Mass (59 vs 9 u).
Atomic Properties
4
Atomic Number
27
9
Atomic Mass
59
2
Period
4
2
Group
9
Physical Properties
2
Density
9
1,560
Melting Point
1,768
2,742
Boiling Point
3,200
16
Molar Heat Capacity
25
Chemical Properties
2
Electronegativity
2
-48
Electron Affinity
64
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).