Boron (B)vsRoentgenium (Rg)
Roentgenium (Rg) has a higher Atomic Mass (282 vs 11 u), while Roentgenium (Rg) has a higher Atomic Number (111 vs 5), while Roentgenium (Rg) has a higher Density (29 vs 2 g/cm³).
Atomic Properties
5
Atomic Number
111
11
Atomic Mass
282
2
Period
7
13
Group
11
Physical Properties
2
Density
29
2,349
Melting Point
N/A
4,200
Boiling Point
N/A
11
Molar Heat Capacity
N/A
Chemical Properties
2
Electronegativity
N/A
27
Electron Affinity
151
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).