SiZ =  14

From the Latin "silex, -icis", meaning "flint"
(AM) Atomic Mass 28.0855  amu    Oxidation States +2, +4, -4
   (BP) Boiling Point 2355  °C    (MP) Melting Point 1410  °C
   (ρ) Density 2.24  g/cm3    Crystal Structure Diamond
   ( χ ) Electronegativity 1.8    (AR) Atomic Radius 1.11  Å
   Physical State Solid (C) Heat Capacity 0.705  J/g °C
Electronic-Config [Ne]  3s2  3p2     (I1) First Ionization E 786.45  kJ/mol
   (ΔHvap) Heat of Vaporization 359  kJ/mol     (ΔHfus) Heat of Fusion 50.21  kJ/mol
   Year of Discovery 1824    Location of Discovery Sweden
(E°) Standard Potential SiO2 + 4 H+⇔ Si + 2 H2O (-0.860 V)
Stable isotopes  28Si,  29Si,  30Si
Discovered/Synthesized by Jöns Jacob Berzelius
Natural Source The mineral/ore quartz
Common Uses Ceramics, glass, semiconductors, computer chips, silicone rubber
Other Info Most of the Earth’s rock and mantle is made of silicate rock
Chemists doubt that silicon-based life could exist
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