Actinium (Ac)vsPraseodymium (Pr)
Praseodymium (Pr) has a higher Electron Affinity (93 vs 34 kJ/mol), while Actinium (Ac) has a higher Atomic Mass (227 vs 141 u), while Actinium (Ac) has a higher Atomic Number (89 vs 59).
Atomic Properties
89
Atomic Number
59
227
Atomic Mass
141
7
Period
6
3
Group
3
Physical Properties
10
Density
7
1,500
Melting Point
1,208
3,500
Boiling Point
3,403
27
Molar Heat Capacity
27
Chemical Properties
1
Electronegativity
1
34
Electron Affinity
93
Similar Comparisons to Actinium (Ac) vs Praseodymium (Pr)
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).