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Thread: Silicon

  1. #1 Silicon 
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    i have a few question about this element & was wondering if anyone would mind answering them indepth


    • 1) What lead to the discovery of the element, & what was its innitial use

      2) what are the physical & chemical properties of silicon. what are the modern uses & why we use it.

      3) for what, & how is Silicon extracted commercially? & how can an experiment be done to extract it from its natural state(sand) in a small lab


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  3. #2  
    Forum Isotope Bunbury's Avatar
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    There is no such element as sillicon.


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  4. #3  
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    sry i realized my mistake there is only one "l' in silicon
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  5. #4  
    Forum Masters Degree thyristor's Avatar
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    I don't know the answer to all your questions but I can answer the question about it's modern uses and why we use it.
    Silicon is used as a semiconductor in many electrical components. It is used in transistors, diodes, thyristors, solar cells well in almost all semiconductor components you can think of, name it!
    In these components you have doped, added a few extra atoms, (is it the right verb?) the silicon with other atoms, for example arsenic and boron. One of the dopants have one more valence electron than silicon and the other has one less.
    The dopants are in different parts of the silicon plate.
    In the part where there are atoms with one electron less (acceptors) you get fewer electrons than in the other part where you have donants.
    Due to this you will have a diffusion of electrons from the n-part (the one with donants) to the the p-part (the one with donants). Where the parts meet you get a so called pn junction through which electrons only can pass in one way.
    This is used to direct electric current.
    I guess that the reason why you use silicon is because it exist in such huge quantities, why it becomes rather cheap.
    373 13231-mbm-13231 373
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  6. #5  
    Moderator Moderator AlexP's Avatar
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    I would think you can find all the info you need through a simple Google search. You don't need anyone to give you answers, and if this is homework you should be finding the answers yourself anyway. Put a little effort into it and do a search, see what you can come up with.
    "There is a kind of lazy pleasure in useless and out-of-the-way erudition." -Jorge Luis Borges
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  7. #6  
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    i just made this thread cause a wider range of info ccould be more help full than just me googling everything, & going through books. :?

    i found out who discovered it, but i dont know why he was doing that particular experiment. I want to know what was he trying to achieve.

    i really dont know much about it other than the fact it has a high melting point & boiling point

    i found out the burn it with coke in a blast furnace to extract the silicon, but i wanna know some of the commercial uses for it, i also need a small scale experiment to try out in class.
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