Astatine (At)vsMendelevium (Md)
Astatine (At) has a higher Group (17 vs 3), while Astatine (At) has a higher Electron Affinity (233 vs 94 kJ/mol), while Mendelevium (Md) has a higher Melting Point (1,100 vs 575 K).
Atomic Properties
85
Atomic Number
101
210
Atomic Mass
258
6
Period
7
17
Group
3
Physical Properties
6
Density
N/A
575
Melting Point
1,100
610
Boiling Point
N/A
N/A
Molar Heat Capacity
N/A
Chemical Properties
2
Electronegativity
1
233
Electron Affinity
94
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).