Aluminium (Al)vsNeptunium (Np)
Neptunium (Np) has a higher Atomic Mass (237 vs 27 u), while Neptunium (Np) has a higher Density (20 vs 3 g/cm³), while Neptunium (Np) has a higher Atomic Number (93 vs 13).
Atomic Properties
13
Atomic Number
93
27
Atomic Mass
237
3
Period
7
13
Group
3
Physical Properties
3
Density
20
933
Melting Point
912
2,743
Boiling Point
4,447
24
Molar Heat Capacity
29
Chemical Properties
2
Electronegativity
1
42
Electron Affinity
46
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).