Krypton

=❍KRYPTON= = =

Facts

⇐

=Symbol: Kr= =Atomic Number: 36= =Atomic Mass: 83.3= =Number of Protons: 36= =Number of : 48= Noble Gas, group 18, period 4

**Properties**


 * Melting Point:** -157.2 °C (115.950005 K, -250.95999 °F)
 * Boiling Point:** -153.4 °C (119.75001 K, -244.12 °F)
 * Crystal Structure:** Cubic
 * Density @ 293 K:** 3.74 g/cm3
 * Color:** colorless gas
 * Ions:** there are no ions

 **Number of Energy Levels:** 4 1. **Fourth Energy Level:** 8
 * 2. First Energy Level:** 2 [[image:rypton.png]]
 * 3. Second Energy Level:** 8
 * Third Energy Level:** 18

= Discovery=

= Interesting fact= In the movie Superman, Superman's home planet is Krypton. Krypton lamp.

Works Cited unknown. "Chemical Elements.com - Krypton (Kr)." //Chemical Elements.com - An Interactive Periodic Table of the Elements//. N.p., n.d. Web. 23 Nov. 2009. . unknown. "Krypton - Wikipedia, the free encyclopedia." //Wikipedia, the free encyclopedia//. N.p., n.d. Web. 23 Nov. 2009. . unknown. "Krypton lamp." //Kryptin lamp//. N.p., n.d. Web. 23 Nov. 2009. . unknown. "Periodic Table of the Elements." //Prairie Hills Middle School// 18 Aug. 2009: 109. Print. unknown. "ThinkQuest : 404 - Page Not Found." //Oracle ThinkQuest Library//. N.p., n.d. Web. 23 Nov. 2009. .

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