Silicon



General
Atomic Number 14
Symbol Si    
Relative Atomic Mass 28.086
Year of Discovery 1823
Boiling Point (°K, °C) 2406.85, 2680
Melting Point (°K, °C) 1136.85, 1410
Geochemical Class lithophile
Principal Sources
Mineral or Other quartz
Formula SiO2
Origin widespread
Relative Abundance (log10)
Sun 7.7
Meteorite 7.60
Earth 8.16
Crust 8.43
Ocean 8
Body 4
Isotopic Composition
Mass Number 28 29 30
% Abundance 92.2 4.7 3.1


Back to the Periodic Table Page