Krypton

Kryp"ton

(krp"tn), n. [NL., fr. Gr. krypto`n, neut. of krypto`s hidden.] (Chem.) An inert gaseous element of the argon (noble gas) group, of atomic number 36, occurring in air to the extent of about one volume in a million. It was discovered by Ramsay and Travers in 1898. Boiling point, -152.3 C.; melting point, -156.6 C.; symbol, Kr; atomic weight, 83.8.
[Webster 1913 Suppl.]

 

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