silicon

=__**Silicon**__=

tommy Case

-atomic number:14

-atomic weight:28.0855

-density:2.329g/ml

-structure:cubic

-neutrons: 14

-Class: metaloids

-Family:14

-symbol:si

-color:grey

Silicon is used in glass and computer chips.

History
Silicon was first brought to attention as a possible oxide of a chemical element by Antoine Lavoisier in 1787. Sir Humpry Davy attempted to isolate silicon in 1808, proposing the name silicium. In 1811, Gay-Lussac and Thénard were thought to have prepared impure amorphous silicon, but they did not purify and characterize the product, or identify it as a new element.