Astatine (At)vsMercury (Hg)
Astatine (At) has a higher Electron Affinity (233 vs -48 kJ/mol), while Astatine (At) has a higher Melting Point (575 vs 234 K), while Mercury (Hg) has a higher Density (14 vs 6 g/cm³).
Atomic Properties
85
Atomic Number
80
210
Atomic Mass
201
6
Period
6
17
Group
12
Physical Properties
6
Density
14
575
Melting Point
234
610
Boiling Point
630
N/A
Molar Heat Capacity
28
Chemical Properties
2
Electronegativity
2
233
Electron Affinity
-48
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).