Uses: discharge lamps and fluorescent lamps

Bohr Model:

Bentor, Yinon. "Period Table: Krypton." Chemical Elements. N.p., n.d. Web. 16 Nov 2011. <http://www.chemicalelements.com/elements/kr.html>.

. "Krypton." Hobart. N.p., n.d. Web. 16 Nov 2011. <http://www.hobart.k12.in.us/ksms/PeriodicTable/krypton.htm>.

Boiling Point: -153.4°C
Melting Point: -157.2°C
Period Number: 4
Names of all the elements in its group: Helium, Neon, Argon, Krypton, Xenon, Radon, and Ununoctium

Bentor, Yinon. "Period Table: Krypton." Chemical Elements. N.p., n.d. Web. 16 Nov 2011. <http://www.chemicalelements.com/elements/kr.html>.

Orbital Notation and Electron Configuration

Orbital Notation:
Electron Configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6

Bentor, Yinon. "Period Table: Krypton." Chemical Elements. N.p., n.d. Web. 16 Nov 2011. <http://www.chemicalelements.com/elements/kr.html>.

Discovered: 1898
Discovered by: Ramsay and Travers
History of Name: The name originates from the Greek word 'kryptos' meaning hidden.

Bentor, Yinon. "Period Table: Krypton." Chemical Elements. N.p., n.d. Web. 16 Nov 2011. <http://www.chemicalelements.com/elements/kr.html>.

State of Matter(at room temperature): gas
Type of element: metalloid
Color of Element: colorless

. "The Periodic Table." Periodic-Table. N.p., n.d. Web. 16 Nov 2011. <http://www.periodic-table.org.uk/>.

Gagnon, Steve. "Questions and Answers." Jefferson Lab. N.p., n.d. Web. 16 Nov 2011. <http://education.jlab.org/qa/krypton.html>.

Symbol, Atomic Number, and Atomic Mass

Symbol: Kr
Atomic Number: 36
Atomic Mass: 83.80

 Chem4kids. Andrew Rader Studios, n.d. Web. 16 Nov 2011. <http://www.chem4kids.com/files/elements/036_shells.html>.