Astatine (At)vsCobalt (Co)
Cobalt (Co) has a higher Boiling Point (3,200 vs 610 K), while Astatine (At) has a higher Electron Affinity (233 vs 64 kJ/mol), while Astatine (At) has a higher Atomic Mass (210 vs 59 u).
Atomic Properties
85
Atomic Number
27
210
Atomic Mass
59
6
Period
4
17
Group
9
Physical Properties
6
Density
9
575
Melting Point
1,768
610
Boiling Point
3,200
N/A
Molar Heat Capacity
25
Chemical Properties
2
Electronegativity
2
233
Electron Affinity
64
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).