Americium (Am)vsSilicon (Si)
Silicon (Si) has a higher Electron Affinity (134 vs 10 kJ/mol), while Americium (Am) has a higher Atomic Mass (243 vs 28 u), while Americium (Am) has a higher Atomic Number (95 vs 14).
Atomic Properties
95
Atomic Number
14
243
Atomic Mass
28
7
Period
3
3
Group
14
Physical Properties
12
Density
2
1,449
Melting Point
1,687
2,880
Boiling Point
3,538
63
Molar Heat Capacity
20
Chemical Properties
1
Electronegativity
2
10
Electron Affinity
134
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).