Actinium (Ac)vsEuropium (Eu)
Actinium (Ac) has a higher Electron Affinity (34 vs 11 kJ/mol), while Actinium (Ac) has a higher Boiling Point (3,500 vs 1,802 K), while Actinium (Ac) has a higher Density (10 vs 5 g/cm³).
Atomic Properties
89
Atomic Number
63
227
Atomic Mass
152
7
Period
6
3
Group
3
Physical Properties
10
Density
5
1,500
Melting Point
1,099
3,500
Boiling Point
1,802
27
Molar Heat Capacity
28
Chemical Properties
1
Electronegativity
1
34
Electron Affinity
11
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).