Actinium (Ac)vsOxygen (O)
Actinium (Ac) has a higher Boiling Point (3,500 vs 90 K), while Actinium (Ac) has a higher Melting Point (1,500 vs 54 K), while Actinium (Ac) has a higher Atomic Mass (227 vs 16 u).
Atomic Properties
89
Atomic Number
8
227
Atomic Mass
16
7
Period
2
3
Group
16
Physical Properties
10
Density
1
1,500
Melting Point
54
3,500
Boiling Point
90
27
Molar Heat Capacity
N/A
Chemical Properties
1
Electronegativity
3
34
Electron Affinity
141
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).