Astatine (At)vsLanthanum (La)
Lanthanum (La) has a higher Boiling Point (3,737 vs 610 K), while Astatine (At) has a higher Group (17 vs 3), while Astatine (At) has a higher Electron Affinity (233 vs 53 kJ/mol).
Atomic Properties
85
Atomic Number
57
210
Atomic Mass
139
6
Period
6
17
Group
3
Physical Properties
6
Density
6
575
Melting Point
1,193
610
Boiling Point
3,737
N/A
Molar Heat Capacity
27
Chemical Properties
2
Electronegativity
1
233
Electron Affinity
53
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).