Helium (He)vsThorium (Th)
Thorium (Th) has a higher Electron Affinity (113 vs -48 kJ/mol), while Thorium (Th) has a higher Melting Point (2,023 vs 1 K), while Thorium (Th) has a higher Boiling Point (5,061 vs 4 K).
Atomic Properties
2
Atomic Number
90
4
Atomic Mass
232
1
Period
7
18
Group
3
Physical Properties
0
Density
12
1
Melting Point
2,023
4
Boiling Point
5,061
N/A
Molar Heat Capacity
26
Chemical Properties
N/A
Electronegativity
1
-48
Electron Affinity
113
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).