Barium (Ba)vsPlutonium (Pu)
Barium (Ba) has a higher Electron Affinity (14 vs -48 kJ/mol), while Plutonium (Pu) has a higher Density (20 vs 4 g/cm³), while Plutonium (Pu) has a higher Atomic Mass (244 vs 137 u).
Atomic Properties
56
Atomic Number
94
137
Atomic Mass
244
6
Period
7
2
Group
3
Physical Properties
4
Density
20
1,000
Melting Point
913
2,118
Boiling Point
3,505
28
Molar Heat Capacity
36
Chemical Properties
1
Electronegativity
1
14
Electron Affinity
-48
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).