Argon

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Argon
Properties
Atomic symbol Ar
Atomic number 18
Classification Non-metal
Atomic mass 39.9 amu
Other Information
Date of discovery 1894
Name of discoverer Sir William Ramsey
Name origin From the Greek argon.
Uses Lighting
Obtained from Air


Argon (Ar) is the most common of the noble gasses. It is an inert component which comprises .934% of the atmosphere.[1]

References

  1. The New American Desk Encyclopedia, Penguin Group, 1989