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Actinium (Ac)vsLawrencium (Lr)

Actinium (Ac) has a higher Electron Affinity (34 vs -30 kJ/mol), while Lawrencium (Lr) has a higher Melting Point (1,900 vs 1,500 K), while Lawrencium (Lr) has a higher Electronegativity (1 vs 1 Pauling).

Atomic Properties

89
Atomic Number
103
227
Atomic Mass
266
7
Period
7
3
Group
3

Physical Properties

10
Density
N/A
1,500
Melting Point
1,900
3,500
Boiling Point
N/A
27
Molar Heat Capacity
N/A

Chemical Properties

1
Electronegativity
1
34
Electron Affinity
-30

Similar Comparisons to Actinium (Ac) vs Lawrencium (Lr)

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