• Like
  • Save
Silicon (Samantha Brossart)
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

Silicon (Samantha Brossart)

  • 360 views
Published

 

Published in Education , Business , Technology
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Be the first to comment
No Downloads

Views

Total Views
360
On SlideShare
0
From Embeds
0
Number of Embeds
0

Actions

Shares
Downloads
0
Comments
0
Likes
1

Embeds 0

No embeds

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
    No notes for slide

Transcript

  • 1. Silicon; Si Samantha Brossart Dr. WaltersCHE 120 fall semester, 2011
  • 2. HistoryO Discovered by Jons Jacob Berzelius, a Swedish chemist in 1824O Silicon comes from the Latin word for flint; siexO Silicon is pronounced SIL-i-ken
  • 3. PropertiesSilicon:O Is a solid at room temperature.O Melts at 1687 K (1414°C or 2577°F).O Boils at 3538 K (3265°C or 5909°F).O Has a density of 2.3296 grams per cubic centimetersO At room temperature two allotropes exist; amorphous and crystalline. O Amorphous appears as a brown power. O Crystalline has a metallic luster and a grayish color.
  • 4. AvailabilityO Silicon is the seventh most abundant element in the universe and the second on the earths crust.O SiO2 Silicon dioxide is silicons most common compound, and also the most abundant compound in the earths crust. Commonly Silicon Dioxide takes the form of ordinary sand, but also exists as quartz, rock crystal, amethyst, agate, flint, jasper and opal
  • 5. UsesO Sodium silicate (Na2SiO3), also known as water glass, is used in the production of soaps, adhesives and as an egg preservative.O Silicon tetrachloride (SiCl4) is used to create smoke screens.O Silicon is also an important ingredient in silicone, a class of material that is used for such things as lubricants, polishing agents, electrical insulators and medical implants.
  • 6. ReferencesO Berzelius Jons Jacob. Scientific Identity. Smithsonian Institution Libraries. Web. 11 November 2011.O The Element Silicon. Jefferson Lab. Steve Gagnon. Web. 11 November 2011.O Mineral’s; Silicon. The Mineral Mine. Long Beach, CA. web. 11 November 2011.O Silicon Facts. About.com Chemistry. Anne Marie Helmenstine, Ph.D. Web. 11 November 2011.