Bretz,+Megan

= [|Silicon, Si] =

Silicon has a boiliong point of 2900 degree C (5252 degree F) and a melting point of 1414 degree C (2477 degree F).The density of Silicon is 2330 kg m-3. The amount of protons, neutrons and electrons Silicon has is 14 for each. It has a atomic mass of 28.0855 and an atomic number of 14. The electron configuration of Silicon is [Ne] 3s23p2.Silicon has 4 valence electrons. Silicon was discovered byJons jacob Berzelius. He is given the credit of the discovery of Silcion in 1824 in Sweden even tough deville made crystalline silicon in 1854.It was discovered by that Berzelius made amorphous silicon by heating potassium with silicon tetraflouride and then purified it. Silicon is sometimes melted or vaporized but it is commercially made by heating Silica and Carbon in an electric furnace, using Carbon electrodes. __ Physical Properties __ solid at room temperature with relatively high melting point and boiling point

it has a greater density in liquid form than as a solid

doesn’t contract when it freezes, but expands

__ Chemical Properties __

Metalloid

Either donating or sharing its four electrons

Forms many chemical bonds

Typically form four bonds

It can accept additional electrons

Minerals, compounds, and ores found in Silicon is quartz. One common chemical reaction is with air.The surface of silicon is protected by a very thin layer of silicon dioxide. After the reaction with oxygen in the air gives silicon dioxide, at temperatures silicon reacts with nitrogen. It also reats with water. The same surface that protects Silicon makes Silicon more or less to water and even steam. Silicon is used in sand and clay to make concrete and brick. It is also in glas and how it is shaped. [|The cost of Silicon is unknow but can be priced in different forms].


 * Silicon oven mit is $15
 * Silicone brush is $8
 * Silicon carbide owl is $36
 * Silicone pot gripper is $3

__Diagram Bohr Model__ __ Silicon in pure state __ [|Unusual Facts]

Silicon is important to plant and animals life. The diatoms in fresh and salt water pull out silica from the water and build their cell walls. Silica is in the ashes of plants and in human skeleton

Also important element in steal, silicon carbide is the most important abrasives

MLA [|**http://www.rsc.org/periodic-table/element/14/silicon**] [] Royal Scociety of Chemistry 2013 [|**http://www.periodictable.com/Elements/014/index.html**] [|Periodictable.com] RGB Reserach september 2, 2013 [|**http://periodic.lanl.gov/14.shtml**] [] Los Alamos national security 2010-11