Neptunium (Np)vsOxygen (O)
Neptunium (Np) has a higher Boiling Point (4,447 vs 90 K), while Neptunium (Np) has a higher Melting Point (912 vs 54 K), while Neptunium (Np) has a higher Atomic Mass (237 vs 16 u).
Atomic Properties
93
Atomic Number
8
237
Atomic Mass
16
7
Period
2
3
Group
16
Physical Properties
20
Density
1
912
Melting Point
54
4,447
Boiling Point
90
29
Molar Heat Capacity
N/A
Chemical Properties
1
Electronegativity
3
46
Electron Affinity
141
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).