Actinium (Ac)vsDubnium (Db)
Dubnium (Db) has a higher Density (29 vs 10 g/cm³), while Dubnium (Db) has a higher Group (5 vs 3), while Dubnium (Db) has a higher Atomic Mass (268 vs 227 u).
Atomic Properties
89
Atomic Number
105
227
Atomic Mass
268
7
Period
7
3
Group
5
Physical Properties
10
Density
29
1,500
Melting Point
N/A
3,500
Boiling Point
N/A
27
Molar Heat Capacity
N/A
Chemical Properties
1
Electronegativity
N/A
34
Electron Affinity
N/A
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).