Information valid for Si-28 unless otherwise noted
Silicon
Basic Information
Symbol: Si
Atomic Number: 14
Mass: 28.0855
Melting Point: 1410
Boiling Point: 2355
Number of Protons/Electrons: 14
Number of Neutrons: 14
Classification: Metalloid
Crystal Structure: Cubic
Density: 2.329
Color: grey
Atomic Structure
Number of Energy Levels: 3
First Energy Level: 2
Second Energy Level: 8
Third Energy Level: 4
Isotopes
Isotope
Half Life
Si-28
Stable
Si-29
Stable
Si-30
Stable
Si-31
2.62 hours
Si-32
100 years
Facts
Date of Discovery: 1823
Discoverer: Jons Berzelius
Name Origin: From the Latin word silex (flint)
Uses: glass, semiconductors
Obtained From: Second most abundant element. Found in clay, granite, quartz, sand
Related Links
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![[ATOM]](atom.gif)
![[Bohr Model of Silicon]](b0014.gif)
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