Trice,+Nicole

=Welcome to Mrs. Bowman's Science pages!= Silicon-Si

-[|Melting point is 1414 degrees Celsius.] -Boiling point is 2900 degrees Celsius.

-[|Density of silicon is 2.33g/cm3.]

**[|14 neutrons] are in the nucleus also. You subtract the atomic mass( 28.10g) and protons to get the neutrons.**
 * The atomic number is 14 so that means that there are 14 protons and electrons in Silicon’s nucleus. The number of protons and electrons are the same number as the atomic number, therefore being 14! **

v Electron configuration- [|3s2, 3p2]

v Orbital notation- [|1s2 2s2 2p6 3s2 3p2]

It has 4 [|valence electrons] in the outermost shell.

Silicon was discovered by [|Jacob Berzelius]. He was Swedish. This fond discovery was made in 1824. He was “heating” chips of Potassium the element and there was a residue left over. The residue was later discovered to be Silicon. The potassium was being heated in a Silica bowl. Was that how the product Silicon came to be named Silicon? Although, Silex means flint and that’s where he would’ve came up with it.

Silicon is in the natural resources sand and clay which are use to make cement. Cement is used to strictly hold together large building operations like skyscrapers or works of [|industrial uses]. Houses even need cement to hold the foundation together. Silicon also has many more uses such as being in carbides and steel. Carbides are used for many types of things like car manufacturing and the processing of factory making. Carbide is the hardest man made metal. You can only use diamonds to cut it. Silicon is also in pottery. The next time you’re in ceramic class maybe you can think about how you’re using silicon is your pottery to make your unique creations come alive.

2nd most common [|element] found in the Earth's crust. Its mined. This element is a metalloid and a solid when in a regular state. Aslo a very shiny silver color. Silicon is very brittle escpiecially when in it's quartz state.


 * Electron shells- 2, 8, 4
 * Used in high class watches and clocks that is very expensive.

Reactions

v Silicon reacts with halogens or dilute alkalis v Silicon reacts with trichlorosilane and then reacts with pure hydrogen to make silicon rods at 1150 degrees Celsius.

0.14 If you buy in a bulk 5.14 If you buy while its pure and freshly mined.

Bohr model of Silicon



"Silicon." //Interavtives.The Periodic Table//. Annenberg Foundation 2013, n.d. Web. 4 Mar. 2013. []. "Silicon Physical Properties." //Webelements//. Mark Winter, 1993-2012. Web. 4 Mar. 2013. []. "Silicon Uses." //Webelements//. Mark Winter, 1993-2012. Web. 4 Mar. 2013. []. "The Element Silicon." //Jefferson Lab//. Steve Gagon, n.d. Web. 4 Mar. 2013. [].