Argon By: Dalton Miller
Element Argon Element= Argon Atomic Symbol= Ar Atomic Number = 18 Atomic Mass = 39.942
Periodic Table Argon Group 18 Period 3
Isotopes and Ions Noble Gas- no ions Three Isotopes
Discovered Sir William Ramsay and Lord Rayleigh in 1894 Discovered in Scotland
Properties Noble Gas Colorless Tasteless Freezing Point- -189.2 Celsius Boiling Point-185.7 Celsius Gas inside light bulbs
Uses and Facts Mars contains 1.6% argon .94% found in Earths atmosphere Is released in atmosphere through decay of radioactive potassium in Earth’s crust
Bibliography "ARGON (from the Gr. 6.... - Online Information article about ARGON (from the Gr. 6....." Online 1911 Encyclopedia Britannica. N.p., n.d. Web. 24 Nov. 2009. <http://encyclopedia.jrank.org/AP • "Rayleigh summary." MacTutor History of Mathematics. N.p., n.d. Web. 24 Nov. 2009. <http://www-history.mcs.st-and.ac.uk/Mathematicians/Rayleigh.html>. • "Rayleigh summary." MacTutor History of Mathematics. N.p., n.d. Web. 24 Nov. 2009. <http://www- history.mcs.st-and.ac.uk/Mathematicians/Rayleigh.html>.
Continued "Argon." World Book. 1 ed. 2009. Argon. Web. 22 Nov. 2009. "Argon." World Book. Student ed. 2009. Argon. Web. 22 Nov. 2009. "Periodic Table of the Elements." Prairie Hills Middle School handbook 2009-2010 Aug. 2009: 109. Print. Uknown, Unknown. Light Bulb. N.d. None, Unknown. Free Photo. Web. 22 Nov. 2009. Unknown, Unknown. Mars. 2009. None, Unknown. Mars. Web. 22 Nov. 2009. "WebElements Periodic Table of the Elements | Argon | historical information." WebElements Periodic Table of the Elements. N.p., n.d. Web. 24 Nov. 2009. <http://www.webelements.com/argon/history.html>. • "WikiAnswers - What happens to the argon gas inside a light bulb when the bulb breaks." WikiAnswers - The Q&A wiki. N.p., n.d. Web. 24 Nov. 2009. <http://wiki.answers.com/Q/What_happens_to_the_argon_gas_inside_a_light_bulb_when_the_bulb_bre aks>.