In 2010-11, the average tuition and fees at a private not-for-profit college were $26,769, while tuition and fees at private for-profit colleges came in at $14,236. The costs of books and supplies at private not-for-profit colleges was $1,217, while the cost of books at for-profit colleges was lower, at $799.uition expenses can vary greatly, depending on the type of two-year institution you hope to attend. In 2009, the average tuition at a public two-year college was $2,156. Average tuition at a private not-for-profit two-year college was $12,725, while tuition at a private for-profit two-year college was $13,858.
Number of Neutrons Melting Point Boiling Point Date of Discovery Crystal Structure. Element Groups: Alkali Metals Alkaline Earth Metals Transition Metals Other Metals Metalloids Non-Metals Halogens Noble Gases Rare Earth Elements Basic Information | Atomic Structure | Isotopes | Related Links | Citing This Page. Basic Information Name: Silicon Symbol: Si Atomic Number: 14 Atomic Mass: 28.0855 amu Melting Point: 1410.0 Â°C (1683.15 K, 2570.0 Â°F) Boiling Point: 2355.0 Â°C (2628.15 K, 4271.0 Â°F) Number of Protons/Electrons: 14 Number of Neutrons: 14 Classification: Metalloid Crystal Structure: Cubic Density @ 293 K: 2.329 g/cm 3 Color: grey Atomic Structure
Silicon is a chemical element with symbol Si and atomic number 14. A hard and brittle crystalline solid with a blue-gray metallic luster, it is a tetravalent metalloid. It is a member of group 14 in the periodic table, along with carbon above it and germanium, tin, lead, and flerovium below.