Astatine (At)vsZirconium (Zr)
Zirconium (Zr) has a higher Boiling Point (4,650 vs 610 K), while Astatine (At) has a higher Electron Affinity (233 vs 42 kJ/mol), while Astatine (At) has a higher Group (17 vs 4).
Atomic Properties
85
Atomic Number
40
210
Atomic Mass
91
6
Period
5
17
Group
4
Physical Properties
6
Density
7
575
Melting Point
2,128
610
Boiling Point
4,650
N/A
Molar Heat Capacity
25
Chemical Properties
2
Electronegativity
1
233
Electron Affinity
42
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).