Carbon+Group+by+Brianna+and+Marissa

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 * Family Name:** Carbon Group
 * Family Location on Table:** Group 14
 * Metal, Metalloid, or Non-Metal:** Carbon is a non-metal, silicon and germanium are metalloids,and tin and lead are metals
 * Reactivity:** Carbon family is relatively non-reactive
 * Natural State:** Solid
 * General Dot Diagram:** it has 4 electrons in its outermost energy level


 * Interesting facts:**
 * each of the elements are very physically and chemically different from each other
 * more abundant in the whole universe than on the earth
 * building block of fossil fuels
 * basis of organic chemistry
 * C-14 is used to date anicient objects of organic origin
 * C-14 is an important but rare radioactive isotope of carbon

** __Carbon__ ** By: Brianna Slothower __Symbol:__ C __Atomic number:__ 6 __ Atomic Mass: __12.0107 __Valence Numbers:__ +2, +4 It’s not known for sure who it was discovered by, but we do know carbon was recognized in the second half of the 18th century. Its melting point is 3,500 degrees Celsius and the boiling point is 4,827 degrees Celsius. It is in the atmosphere and coal deposits. It is abundant in the sun, stars, comets, and atmospheres of most other planets. It’s used in fuel, lubricants, and archaeological dating. It is one of the oldest known elements, has three naturally occurring isotopes, has been since 3750 BC, 4th most abundant in the universe, and has many different allotropes including diamonds and graphite.



** __Lead__ ** By: Marissa Marek __ Symbol: __ Pb __Atomic Number__: 82 __Atomic Mass__: 207.2 __Valence Number__: +2 +4 __Melting Point:__ 327.4 degrees Celsius __Boiling Point__: 1750 to 1755 degrees Celcius

Lead has been known since ancient times. Nobody knows for sure who discovered it. Lead came from the Anglo- Saxon word, lead. The symbol Pb is from the Latin word, plumbum. Plumbism is the medical term for lead poisoning, which can cause damage to the kidneys, the liver, and the brain. Lead is found in the earth’s crust. It is the heaviest element in the carbon family. Lead is ductile, which means that it is capable of being drawn into wire. It is also malleable, which means that it can be worked into different shapes. Lead is moderately active and it dissolves slowly in water and cold acids. It reacts even faster with hot acid. Lead used to be used in paints until it was discovered that it was toxic. Now it used in ammunition, sheet lead in construction, water and sewage pipes, gasoline, and to block radiation (because it is so dense).

Carbon Family.” //Science Clarified//. Advameg, Inc., 2010. Web. 8 Apr. 2010. . “Lead, Chemical Element.” //Chemistry Explained Foundations and Applications//. Advameg, Inc., 2010. Web. 8 Apr. 2010. .// // Thomas Jefferson National Accelerator Facility-Office of Science Education. “Who Discovered the Element Gold, Silver, Copper, Neon, etc...?” //Jefferson Lab//. United States Department of Energy, 7 Apr. 2010. Web. 8 Apr. 2010. []// "info barrel." info barrel //. N.p., 2008. Web. 7 Apr. 2010. []. "carbon family." // Enotes.com//. N.p., n.d. Web. 7 Apr. 2010. .