Roentgenium (Rg)vsSamarium (Sm)
Roentgenium (Rg) has a higher Electron Affinity (151 vs 16 kJ/mol), while Roentgenium (Rg) has a higher Density (29 vs 8 g/cm³), while Roentgenium (Rg) has a higher Group (11 vs 3).
Atomic Properties
111
Atomic Number
62
282
Atomic Mass
150
7
Period
6
11
Group
3
Physical Properties
29
Density
8
N/A
Melting Point
1,345
N/A
Boiling Point
2,173
N/A
Molar Heat Capacity
30
Chemical Properties
N/A
Electronegativity
1
151
Electron Affinity
16
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).