Actinium (Ac)vsMercury (Hg)
Actinium (Ac) has a higher Electron Affinity (34 vs -48 kJ/mol), while Actinium (Ac) has a higher Melting Point (1,500 vs 234 K), while Actinium (Ac) has a higher Boiling Point (3,500 vs 630 K).
Atomic Properties
89
Atomic Number
80
227
Atomic Mass
201
7
Period
6
3
Group
12
Physical Properties
10
Density
14
1,500
Melting Point
234
3,500
Boiling Point
630
27
Molar Heat Capacity
28
Chemical Properties
1
Electronegativity
2
34
Electron Affinity
-48
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).