Berkelium (Bk)vsNeptunium (Np)
Neptunium (Np) has a higher Electron Affinity (46 vs -165 kJ/mol), while Neptunium (Np) has a higher Boiling Point (4,447 vs 2,900 K), while Neptunium (Np) has a higher Density (20 vs 15 g/cm³).
Atomic Properties
97
Atomic Number
93
247
Atomic Mass
237
7
Period
7
3
Group
3
Physical Properties
15
Density
20
1,259
Melting Point
912
2,900
Boiling Point
4,447
N/A
Molar Heat Capacity
29
Chemical Properties
1
Electronegativity
1
-165
Electron Affinity
46
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).