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The Noble Gases

The Noble Gases. From your friends: Robin Kimura and Stephen Marshall. http://www.theodoregray.com/PeriodicTable/Images/NobleLights1.JPG. The Noble Gases. There they are!!!!!!!!!!. Noble Gases Defined.

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The Noble Gases

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  1. The Noble Gases From your friends: Robin Kimura and Stephen Marshall http://www.theodoregray.com/PeriodicTable/Images/NobleLights1.JPG

  2. The Noble Gases There they are!!!!!!!!!!

  3. Noble Gases Defined • The noble gasses are inactive or inert. Each atom has exactly the number of electrons to have a full outer shell, so these atoms almost never bond with other atoms. That is why these are all gases. • Noble gases include: helium, neon, argon, krypton, xenon, radon. http://esamultimedia.esa.int/images/Science/xmm/LMXB_HR_H.jpg

  4. Where Are They? • Extremely rare in nature • Found in small amounts in the atmosphere • Helium accumulates in natural gas wells http://www.home.unix-ag.org/simon/gimp/pics/globe_demo.jpg

  5. Physical Properties • Only exist as single atoms (monatomic) • boil at low temperatures • Closed shells • As density increases, the atomic mass increases • Density Comparisons: • Helium has 1/7th the density of air • Xenon is 10x more dense than air www.douglastriggs.com/render/atoms-prev.jpg

  6. Chemical Properties • Almost all of the noble gases are chemically inert • Helium, neon, and argon do not form known compounds • Krypton reacts with fluorine to form a colorless solid • Xenon reacts with oxygen and fluorine to form a variety of compounds http://plugins.angstraum.at/neon/neon_example.jpg

  7. Did you know…….? (These are used for some pretty cool stuff) • Helium- fill airships, weather balloons, scuba tanks, aircraft tires, and awesome party balloons • Argon- light bulbs • Krypton & Xenon- photographic and stroboscopic lighthouse lamps • Neon- advertising signs http://www.greenstar.org/e-philanthropy/lightbulbs.jpg

  8. Bibliography • Bateman, Dr. D. W. Noble Gases. (29 Jan. 2007) 26 Sept. 2007. <http://www.drbateman.net/index.html>. • Bentor, Yinon. "Periodic Table of Elements." Table. Chemical Elemtns.29 Sep. 2007 <http://www.chemicalelements.com/graphics/table.gif>. • "Group 18- The Noble Gases." Chemical Data.1 Royal Society of Chemisty. 26 Sept. 2007 <http://www.chemsoc.org/viselements/pages/data/intro_groupviii_data.html>. • “Groups: Noble Gases.” The Periodic Tables. Annenburg Media. 29 Sept. 2007 <http://www.learner.org/interactives/periodic/groups4.html> • “The Noble Gases.” HyperPhysics. Georgia State University. 26 Sept. 2007. <http://hyperphysics.phy-astr.gsu.edu/hbase/hframe.html.>. http://www.ilankelman.org/themes/fireworks1.jpg

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