Radium (Ra)vsSilicon (Si)
Silicon (Si) has a higher Electron Affinity (134 vs 10 kJ/mol), while Radium (Ra) has a higher Atomic Mass (226 vs 28 u), while Silicon (Si) has a higher Group (14 vs 2).
Atomic Properties
88
Atomic Number
14
226
Atomic Mass
28
7
Period
3
2
Group
14
Physical Properties
6
Density
2
1,233
Melting Point
1,687
2,010
Boiling Point
3,538
N/A
Molar Heat Capacity
20
Chemical Properties
1
Electronegativity
2
10
Electron Affinity
134
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Data sourced from Periodic-Table-JSON (CC-BY-SA (data is public domain scientific fact)).