Helium (He)vsLead (Pb)
Lead (Pb) has a higher Electron Affinity (34 vs -48 kJ/mol), while Lead (Pb) has a higher Melting Point (601 vs 1 K), while Lead (Pb) has a higher Boiling Point (2,022 vs 4 K).
Atomic Properties
2
Atomic Number
82
4
Atomic Mass
207
1
Period
6
18
Group
14
Physical Properties
0
Density
11
1
Melting Point
601
4
Boiling Point
2,022
N/A
Molar Heat Capacity
27
Chemical Properties
N/A
Electronegativity
2
-48
Electron Affinity
34
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).