Astatine (At)vsBoron (B)
Astatine (At) has a higher Atomic Mass (210 vs 11 u), while Astatine (At) has a higher Atomic Number (85 vs 5), while Astatine (At) has a higher Electron Affinity (233 vs 27 kJ/mol).
Atomic Properties
85
Atomic Number
5
210
Atomic Mass
11
6
Period
2
17
Group
13
Physical Properties
6
Density
2
575
Melting Point
2,349
610
Boiling Point
4,200
N/A
Molar Heat Capacity
11
Chemical Properties
2
Electronegativity
2
233
Electron Affinity
27
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).