P3+Noble+Gasses

** Noble Gases **
Noble gases are found in group 18, and periods 1-6. There are 6 noble gases in all: Neon, Helium, Argon, Krypton, Xenon, and Radon. They are gases. **Physical Properties ** -room temperature -colorless **Chemical Properties** - non-reactive -high ionization energies -non- flammable under standard conditions **Fun Facts** -Thought to be inert gases until 1960's because of the oxidation number of 0 that prevents them from forming compounds. -single atom elements -Have a completely filled valence Shell **Uses** -Helium is used to blow up balloons and kept them floating in the air. -Neon is used for glow sticks. -Krypton is used for fluorescent lights. -Radon is used for medical applications in Radiotherapy. -Argon is used for ordinary incandescent lightbulbs.(They are filled with Argon.) -Xenon is used for flashing stroboscopic lights.
 * - **low boiling point
 * -low electronegativities **

**Sources:**  .  . .
 * Bentor, Yinon."Periodic table: Noble Gases."Chemicalelements.com.2009.October 26,2009.
 *  Helmenstine, Anne M. "Noble Gases." Chemistry.about.com.2009.October 26,2009.
 * "Noble Gases."scienceclarified.com.2009.October 26,2009.
 * //The Noble Gases- Overview//. 2009. Photograph. BCC. Web. 26 Oct. 2009.<[|www.bbc.co.uk/.../ patterns/groupsrev6.shtml>]
 * //Neon//. Photograph. By Christina Mazzio. Web. 26 Oct. 2009. .