#14 Silicon-Gim-5th Period
Silicon (SIL-i-con) Si Atomic Number: 14 Atomic Mass: 28.086 Protons: 14 Neutrons: 14 Electrons: 14 sciencenotes.org
Color: grey with a blue tinge Uses: glass, semiconductors upload.wikimedia.org
Group 14 (IVA) Carbon Metalloid www.wisdomportal.com
Jöns Jacob Berzelius Discovered Silicon in 1824 Silicon is the 2nd most abundant element on Earth (oxygen is the first) Found in clay, granite, quartz, sand, flint, and more www.sil.si.edu
Melting Point: 1410 C Freezing Point: 2355 C Normal Phase: Solid sr.photos3.fotosearch.com
Atomic Structure: 2, 8, 4 Common Compounds: Silicon Dioxide (SiO2) Silicon Carbide (SiC) Silicon Silicate (Na2SiO3) Silicon Tetrachloride (SiCl4)
Cost: Reg grade- $0.50/gram Pure grade-$50.00/lbs Hyperpure-$100.00/ounce Uses: glass, semiconductors, rubber and waterproof sealant in pipes, roofs, bathrooms, and windows blogs-images.forbes.com
3 Cool Facts! 1. makes up 25.7% of Earth's crust 2. Crystal Structure: Cubic 3. Density: 2.329 g/cm cubed www.periodicvideos.com

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