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Actinium (Ac)vsBeryllium (Be)

Actinium (Ac) has a higher Electron Affinity (34 vs -48 kJ/mol), while Actinium (Ac) has a higher Atomic Mass (227 vs 9 u), while Actinium (Ac) has a higher Atomic Number (89 vs 4).

Atomic Properties

89
Atomic Number
4
227
Atomic Mass
9
7
Period
2
3
Group
2

Physical Properties

10
Density
2
1,500
Melting Point
1,560
3,500
Boiling Point
2,742
27
Molar Heat Capacity
16

Chemical Properties

1
Electronegativity
2
34
Electron Affinity
-48

Similar Comparisons to Actinium (Ac) vs Beryllium (Be)

Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).