Astatine (At)vsCopper (Cu)
Copper (Cu) has a higher Boiling Point (2,835 vs 610 K), while Astatine (At) has a higher Atomic Mass (210 vs 64 u), while Astatine (At) has a higher Atomic Number (85 vs 29).
Atomic Properties
85
Atomic Number
29
210
Atomic Mass
64
6
Period
4
17
Group
11
Physical Properties
6
Density
9
575
Melting Point
1,358
610
Boiling Point
2,835
N/A
Molar Heat Capacity
24
Chemical Properties
2
Electronegativity
2
233
Electron Affinity
119
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).