Krypton By: Jared Strother.

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Presentation transcript:

Krypton By: Jared Strother

The Element Krypton Atomic Number: 36 Atomic Weight: 83.798 Melting Point: 115.798 (-157.36 °C or -251.25 °F) Boiling point: 119.93 K (-153.22 °C or -243.80 °F) Density: 0.003733 grams per cubic centimeter Phase at Room Temperature: Gas Element Classification: Non-metal Period Number: 4 Group Number: 18 Group Name: Noble Gas

Isotopes 69Kr 36 33 68.96518(43)# 32(10) ms 70Kr 36 34 69.95526(41)# 52(17) ms 71Kr 36 35 70.94963(70) 100(3) ms 72Kr 36 36 71.942092(9) 17.16(18) s 73mKr 433.66(12) keV 107(10) ns (9/2+) 74Kr 36 38 73.9330844(22) 11.50(11) min 0+ 75Kr 36 39 74.930946(9) 4.29(17) min 76Kr 36 40 75.925910(4) 14.8(1) h 77Kr 36 41 76.9246700(21) 74.4(6) min 78Kr 36 42 77.9203648(12) STABLE [>1.1E+20 a] 79Kr 36 43 78.920082(4) 35.04(10) h 79mKr 129.77(5) keV 50(3) s 80Kr 36 44 79.9163790(16) STABLE 81Kr 36 45 80.9165920(21) 2.29(11)E+5 a

Atomic structure

Uses Used in fluorescent tubes Used in photographic flash lamps

Works Citied "It's Elemental - The Element Krypton." Science Education at Jefferson Lab. Web. 08 Oct. 2010. <http://education.jlab.org/itselemental/ele036.html>. "Krypton." Web. 08 Oct. 2010. <http://periodic.lanl.gov/elements/36.html>. "Uses of Krypton." POLYTECH School District. Web. 08 Oct. 2010. <http://www.polytech.k12.de.us/hs/acadport/proserv/2001-2002/powerpoint/information_productmatt2_jsobota/sld023.htm>.