Americium (Am)vsFermium (Fm)
Fermium (Fm) has a higher Electron Affinity (34 vs 10 kJ/mol), while Fermium (Fm) has a higher Melting Point (1,800 vs 1,449 K), while Fermium (Fm) has a higher Electronegativity (1 vs 1 Pauling).
Atomic Properties
95
Atomic Number
100
243
Atomic Mass
257
7
Period
7
3
Group
3
Physical Properties
12
Density
N/A
1,449
Melting Point
1,800
2,880
Boiling Point
N/A
63
Molar Heat Capacity
N/A
Chemical Properties
1
Electronegativity
1
10
Electron Affinity
34
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).