Astatine (At)vsFluorine (F)
Astatine (At) has a higher Atomic Mass (210 vs 19 u), while Astatine (At) has a higher Melting Point (575 vs 53 K), while Astatine (At) has a higher Atomic Number (85 vs 9).
Atomic Properties
85
Atomic Number
9
210
Atomic Mass
19
6
Period
2
17
Group
17
Physical Properties
6
Density
2
575
Melting Point
53
610
Boiling Point
85
N/A
Molar Heat Capacity
N/A
Chemical Properties
2
Electronegativity
4
233
Electron Affinity
328
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).