2. Silicon Atomic Number is 14 Symbol is Si Atomic Mass is 28.09
Pure Silicon

3. Silicon Group 14 Carbon Family Metalloid Density of 2.33 g/cm3
Silvery color
Boiling point of 2355oC
Combustible solid when in powder form
Melting point of 1410oC
Hardness of 6.5 Mohs
Solid

4. Silicon Incompatibilities Chlorine Fluorine Oxidizers Calcium
Cesium Carbide
Alkaline Carbonates

5. Isotopes Si22 Si23 Si24 Si25 Si26 Si27 4.16s 6ms Si28 stable >200ns

6. Common Compounds 1-Vinylpyrrolidone Calcium Silicate Ethyl Silicate
Formula: (CH3)3-Si-[O-Si(CH3)2]n-O-Si-(CH3)3
Calcium Silicate
Formula: CaSiO3
Ethyl Silicate
Formula: (C2H5)4SiO4
Methyl Silicate
Formula: (CH3O)4Si
Silica
Formula: SiO2
Silicon
Formula: Si
Silicon Carbide
Formula: C8H10O2S
Formula: SiC
Silicon Tetrahydride
Formula: SiH4
Talc
Formula: 3MgO-4SiO2-H2O
Formula: Mg3Si4O10(OH)2

7. Discovery Of Silicon Discoverer: Jons Berzelius
Date of Discovery: 1823
Discovered in Sweden
Stable Life Span
Name Origin: From the Latin word silex (flint)
Uses: glass, semiconductors, computer chips
Obtained From: clay, granite, quartz, sand

8. Impact Environmental Social
No negative environmental effects have been reported.
It is very sustainable
Used many things people use everyday
Used in technology
Has a positive social impact

10. Uses Cost Chips for computers and electronics In engines
Enhances iron’s magnetic abilities
In concrete and bricks
In watches and clocks
Cookware
Medical implants
Adhesives
Pure Silicon $5.4 per 100g
Bulk Silicon $0.14 per 100g

11. Interesting Facts
The lowest purity electronic grade silicon can be is % pure.
Second most abundant element on our planet is Silicon.
8th most abundant element in the universe is Silicon
Silicon is made in stars with a mass of eight or more Earth sun