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Actinium (Ac)vsArgon (Ar)

Actinium (Ac) has a higher Electron Affinity (34 vs -96 kJ/mol), while Actinium (Ac) has a higher Boiling Point (3,500 vs 87 K), while Actinium (Ac) has a higher Melting Point (1,500 vs 84 K).

Atomic Properties

89
Atomic Number
18
227
Atomic Mass
40
7
Period
3
3
Group
18

Physical Properties

10
Density
2
1,500
Melting Point
84
3,500
Boiling Point
87
27
Molar Heat Capacity
N/A

Chemical Properties

1
Electronegativity
N/A
34
Electron Affinity
-96

Similar Comparisons to Actinium (Ac) vs Argon (Ar)

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