Chlorine (Cl)vsSodium (Na)
Chlorine (Cl) has a higher Group (17 vs 1), while Chlorine (Cl) has a higher Electron Affinity (349 vs 53 kJ/mol), while Sodium (Na) has a higher Boiling Point (1,156 vs 239 K).
Atomic Properties
17
Atomic Number
11
35
Atomic Mass
23
3
Period
3
17
Group
1
Physical Properties
3
Density
1
172
Melting Point
371
239
Boiling Point
1,156
N/A
Molar Heat Capacity
28
Chemical Properties
3
Electronegativity
1
349
Electron Affinity
53
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).