Americium (Am)vsNeptunium (Np)
Neptunium (Np) has a higher Electron Affinity (46 vs 10 kJ/mol), while Americium (Am) has a higher Molar Heat Capacity (63 vs 29 J/(mol·K)), while Neptunium (Np) has a higher Density (20 vs 12 g/cm³).
Atomic Properties
95
Atomic Number
93
243
Atomic Mass
237
7
Period
7
3
Group
3
Physical Properties
12
Density
20
1,449
Melting Point
912
2,880
Boiling Point
4,447
63
Molar Heat Capacity
29
Chemical Properties
1
Electronegativity
1
10
Electron Affinity
46
Similar Comparisons to Americium (Am) vs Neptunium (Np)
More comparisons with Americium (Am)
More comparisons with Neptunium (Np)
Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).