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Silicon by NIck Mader

Science Project
by

Nick Mader

on 20 December 2012

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Transcript of Silicon by NIck Mader

By Nick Mader Silicon Atomic Structure
and Symbol Melting and Freezing Point Boiling Point Silicon's Atomic Number and Mass Atomic Number: 14 Silicons Melting Point is the same as its Freezing Point
which is 2577 degrees Ferhenheit. Silicons Boiling Piont is rather high at 2355 degrees Celcius or 4271 degrees Ferhenhiet. 28
14 SI Pronunciation SIL-EH-CONE Silicons atomic structure is
14 negative - 14 positive. Atomic Mass: 28.0885 <--- symbol 2577 Freezing Point 2577 Melting Point An example of Silicon Things I Learned Silicon makes up 25.7% of the earth's crust, by weight, making it the second most abundant element. 2355 Degrees Celcius Degrees Ferhenhiet. 4271 History and Uses In 1787, Antoine Lavoisier first classified silicon as
a component of what we would now identify as a
silicate. In 1800, Sir Humphry Davy falsely thought that silicon was not an element but a compound. Only in 1823 was the record set straight when the chemist Berzelius isolated silicon and named it as an element. Its used in the production of glass, cement and ceramics. Its a nonmetallic element abundant in nature. Next to Oxygen
it is the second most constituent of the earth's crust. The symbol for Silicon is Si. It's atomic number is 14 and it's atomic mass is 28.086. Its used in many high-tech devices and technologies. It is used for eye glasses, glass, hearing aids, used to make silicone implant, medicines, bricks, cement, is in sand, and a lot of others. I also learned the melting, freezing, and boiling points of Silicon and all the atomic structure and all the other stuff we had to research. This Project was pretty fun and I would do this over a test any day. :) Thank You!
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