Actinium (Ac)vsAstatine (At)
Astatine (At) has a higher Electron Affinity (233 vs 34 kJ/mol), while Actinium (Ac) has a higher Boiling Point (3,500 vs 610 K), while Astatine (At) has a higher Group (17 vs 3).
Atomic Properties
89
Atomic Number
85
227
Atomic Mass
210
7
Period
6
3
Group
17
Physical Properties
10
Density
6
1,500
Melting Point
575
3,500
Boiling Point
610
27
Molar Heat Capacity
N/A
Chemical Properties
1
Electronegativity
2
34
Electron Affinity
233
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).