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facts about Argon

Argon

Argon

Argon

argon, the chemical element designated by the symbol Ar and the atomic number 18

class, substance, periodic element, gas, Noble gas
Atomic Number, Atomic number
18
State
gas
Symbol, Chemical Symbol
"Ar"
Atomic mass, Atomic Mass
39.948 unified atomic mass units
Class
gas, Noble gas, periodic element, substance
Parent Class
Noble gas, nonmetal, periodic element, substance
Discovered
1894
Discoverer
William Ramsay
Wikipedia Page
http://en.wikipedia.org/wiki/Argon
Experts
John Strutt
CAS Code
"7440-37-1"
Ranking
eighteenth, periodic element and ordering by number of protons
Density
0.0017837 grams per cubic cm
Atomic Weight
39.948
Boiling Point
-185.7 degrees celsius (-302.3 degrees fahrenheit), -185.85 degrees celsius (-302.53 degrees fahrenheit)
Melting Point
-189.2 degrees celsius (-308.6 degrees fahrenheit), 84.0 kelvins
Freebase ID
"/guid/9202a8c04000641f80000000047ba58d"
OpenCyc ID
"Mx4rvViDHpwpEbGdrcN5Y29ycA"
DBPedia URI
http://dbpedia.org/resource/Argon
Related Websites
http://www.lenntech.com/Periodic-chart-elements/Ar-en.htm, http://www.bloxygen.com, http://www.uigi.com/argon.html, http://www.decompression.org/maiken/Why_Argon.htm, http://www.webelements.com/webelements/elements/text/Ar/index.html
Freebase Primary MID
"/m/027r9df"
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External web pages (using standard web search):

Argon Facts - Periodic Table of the Elements
Get periodic table facts on the chemical and physical properties of the element argon.
http://chemistry.about.com/od/elementfacts/a/argon.htm
Facts about ARGON ***
Info and Facts about the element Argon from the Periodic Table. Interesting Facts, information about Argon the element. Concise facts and info about Argon
http://www.facts-about.org.uk/science-element-argon.htm
Argon Gas Facts | eHow.com
Argon Gas Facts. Argon is a noble gas, meaning that it is composed of only one element and has a very low level of chemical reactivity. Argon is relatively abundant, easy to ...
http://www.ehow.com/facts_5453499_argon-gas.html
ARGON
Argon has protons. Eighteen to be exact! And neutrons are present. Twenty two, that's a fact! Argon is really not cool at all. But to get an "A" from Mrs. Bova, I'd ...
http://www.carondelet.pvt.k12.ca.us/PeriodicTable/Ar.htm
Interesting facts about argon - by Alison Bowler - Helium
Argon, a colorless and odorless gas, makes up 0.93% of our planet’s atmosphere. This makes it the third most abundant element in our atmosph..., Alison Bowler
http://www.helium.com/items/1703269-interesting-facts-about-argon

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