Argon: historical information

Argon was discovered by Sir William Ramsay, Lord Rayleigh at 1894 in Scotland. Origin of name: from the Greek word "argos" meaning "inactive".

Argon was discovered by Lord Rayleigh and Sir William Ramsay in 1894. It was isolated by examination of the residue obtained by removing nitrogen, oxygen, carbon dioxide, and water from clean air. In fact, air contains less than 1% argon. The atmosphere of Mars contains less than 2% argon. It was recognized by the characteristic lines in the red end of the spectrum.

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argon atomic number