14
Si
28.086
Silicon
Element 14 · 28.086 u · p-block
metalloid
The backbone of modern electronics. Second most abundant element in Earth's crust after oxygen.
Phase (STP)
Solid
Melting Point
1414 °C
Boiling Point
3265 °C
Density
2.3296 g/cm³
Electronegativity
1.9
Atomic Radius
110 pm
Ionization Energy
786 kJ/mol
Electron Affinity
134 kJ/mol
Discovered
1824 · Jons Jacob Berzelius
Electron Configuration
[Ne] 3s2 3p2
Electron Orbitals
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