Barium (Ba)vsNeptunium (Np)
Neptunium (Np) has a higher Density (20 vs 4 g/cm³), while Neptunium (Np) has a higher Electron Affinity (46 vs 14 kJ/mol), while Neptunium (Np) has a higher Boiling Point (4,447 vs 2,118 K).
Atomic Properties
56
Atomic Number
93
137
Atomic Mass
237
6
Period
7
2
Group
3
Physical Properties
4
Density
20
1,000
Melting Point
912
2,118
Boiling Point
4,447
28
Molar Heat Capacity
29
Chemical Properties
1
Electronegativity
1
14
Electron Affinity
46
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).