Actinium (Ac)vsZirconium (Zr)
Actinium (Ac) has a higher Atomic Mass (227 vs 91 u), while Actinium (Ac) has a higher Atomic Number (89 vs 40), while Actinium (Ac) has a higher Density (10 vs 7 g/cm³).
Atomic Properties
89
Atomic Number
40
227
Atomic Mass
91
7
Period
5
3
Group
4
Physical Properties
10
Density
7
1,500
Melting Point
2,128
3,500
Boiling Point
4,650
27
Molar Heat Capacity
25
Chemical Properties
1
Electronegativity
1
34
Electron Affinity
42
Similar Comparisons to Actinium (Ac) vs Zirconium (Zr)
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).