A Closer Look at Silicon - Chemistry Book for Elementary | Children's Chemistry Books , livre ebook
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English
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2017
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64
pages
English
Ebooks
2017
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Publié par
Date de parution
15 avril 2017
Nombre de lectures
0
EAN13
9781541921252
Langue
English
Poids de l'ouvrage
1 Mo
Publié par
Date de parution
15 avril 2017
Nombre de lectures
0
EAN13
9781541921252
Langue
English
Poids de l'ouvrage
1 Mo
A Closer L ook at Sil icon
Chemistry Book for Elemen tary Children’s Chemistry Bo oks
Speedy Publishing LLC
40 E. Main St. #1156
Newark, DE 19711
www.speedypublishing.com
Copyright 2017
All Rights reserved. No part of this book may be reproduced or used in any way or form or by any means whether electronic or mechanical, this means that you cannot record or photocopy any material ideas or tips that are provided in this book
S ilicon is classified as a metalloid and is the eighth most abundant element of our universe and the second most abundant in Earth’s crust, following oxygen. It has many uses including, but not limited to, making greases, lubricants, rubber materials, caulks and waterproofing materials. In its pure form, silicon is used with the manufacturing of semiconductor chips for electronics.
Read further to learn more about its characteristics, how it was discovered and more.
tablets
Characteristics and Properties of Silicon
I ts symbol is Si and it has an atomic num- ber of 14 and atomic weight of 28.085. At room temperature, it is a solid. It is the second element in column 14 of the pe- riodic table. Its atoms contain 14 protons and 14 electrons and has 4 valence elec- trons in its outer shell.
S ilicon is a solid under standard conditions. In its random (amorphous) form it appears to be a brown powder. When in a crystalline form, it appears as a silver-gray metallic looking material which is strong and brittle.
I t is known to be a semiconductor, which means it has electronic con- ductivity between a conductor and
Silicon wafers prepared for chip production
insulator. With temperature, this con- ductivity increases. This makes is a valuable element for electronics.
silicon crystal
