Actinium (Ac)vsMendelevium (Md)
Mendelevium (Md) has a higher Electron Affinity (94 vs 34 kJ/mol), while Actinium (Ac) has a higher Melting Point (1,500 vs 1,100 K), while Mendelevium (Md) has a higher Electronegativity (1 vs 1 Pauling).
Atomic Properties
89
Atomic Number
101
227
Atomic Mass
258
7
Period
7
3
Group
3
Physical Properties
10
Density
N/A
1,500
Melting Point
1,100
3,500
Boiling Point
N/A
27
Molar Heat Capacity
N/A
Chemical Properties
1
Electronegativity
1
34
Electron Affinity
94
Similar Comparisons to Actinium (Ac) vs Mendelevium (Md)
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).