Changes

{{Element | name=Argon | symbol=Ar | anumber=18 | amass=39.9 amu | noe=18 | class=Non-metal | cstructure=Cubic | color=Colorless gas | date=1894 | discname=[[Sir William Ramsey]] | origname=From the Greek ''argon''. | uses=Lighting | obtained=Air }}

{{Element | name=Argon | symbol=Ar | anumber=18 | amass=39.9 amu | noe=18 | class=Non-metal | cstructure=Cubic | color=Colorless gas | date=1894 | discname=[[Sir William Ramsey]] | origname=From the Greek ''argon''. | uses=Lighting | obtained=Air }}

The most common of the noble gasses, it comprises .934% of the air's atmosphere.<ref>The New American Desk Encyclopedia, Penguin Group, 1989</ref>

'''Argon''' ('''Ar''') is the most common of the [[noble gas]]ses. It is an inert component which comprises .934% of the [[atmosphere]].<ref>The New American Desk Encyclopedia, Penguin Group, 1989</ref>

==References==

==References==

[[Category:Elements]]

[[Category:Elements]]