1. Argon
By: Dalton Miller

2. Element Argon Element= Argon Atomic Symbol= Ar Atomic Number = 18
Atomic Mass =

3. Periodic Table
Argon
Group 18
Period 3

4. Isotopes and Ions
Noble Gas- no ions
Three Isotopes

5. Discovered Sir William Ramsay and Lord Rayleigh in 1894
Discovered in Scotland

6. Properties Noble Gas Colorless Tasteless
Freezing Point Celsius
Boiling Point Celsius
Gas inside light bulbs

7. 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

8. Bibliography
"ARGON (from the Gr Online Information article about ARGON (from the Gr " Online Encyclopedia Britannica. N.p., n.d. Web. 24 Nov <
• "Rayleigh summary." MacTutor History of Mathematics. N.p., n.d. Web. 24 Nov <
• "Rayleigh summary." MacTutor History of Mathematics. N.p., n.d. Web. 24 Nov < history.mcs.st-and.ac.uk/Mathematicians/Rayleigh.html>.

9. Continued "Argon." World Book. 1 ed. 2009. Argon. Web. 22 Nov. 2009.
"Argon." World Book. Student ed Argon. Web. 22 Nov
"Periodic Table of the Elements." Prairie Hills Middle School handbook Aug. 2009: 109. Print.
Uknown, Unknown. Light Bulb. N.d. None, Unknown. Free Photo. Web. 22 Nov
Unknown, Unknown. Mars None, Unknown. Mars. Web. 22 Nov
"WebElements Periodic Table of the Elements | Argon | historical information." WebElements Periodic Table of the Elements. N.p., n.d. Web. 24 Nov <
• "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 < aks>.