Actinium (Ac)vsUranium (U)
Uranium (U) has a higher Density (19 vs 10 g/cm³), while Uranium (U) has a higher Electron Affinity (51 vs 34 kJ/mol), while Uranium (U) has a higher Boiling Point (4,404 vs 3,500 K).
Atomic Properties
89
Atomic Number
92
227
Atomic Mass
238
7
Period
7
3
Group
3
Physical Properties
10
Density
19
1,500
Melting Point
1,405
3,500
Boiling Point
4,404
27
Molar Heat Capacity
28
Chemical Properties
1
Electronegativity
1
34
Electron Affinity
51
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).