Neptunium (Np)vsZirconium (Zr)
Neptunium (Np) has a higher Density (20 vs 7 g/cm³), while Neptunium (Np) has a higher Atomic Mass (237 vs 91 u), while Zirconium (Zr) has a higher Melting Point (2,128 vs 912 K).
Atomic Properties
93
Atomic Number
40
237
Atomic Mass
91
7
Period
5
3
Group
4
Physical Properties
20
Density
7
912
Melting Point
2,128
4,447
Boiling Point
4,650
29
Molar Heat Capacity
25
Chemical Properties
1
Electronegativity
1
46
Electron Affinity
42
Similar Comparisons to Neptunium (Np) vs Zirconium (Zr)
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).