Krypton was discovered by William Ramsay and Morris Travers in residue left from evaporating nearly all the components of liquid air. Within weeks, the duo had detected two other noble gases: neon and xenon. To honour their scientific spirit, King Edward VII made Ramsay a Knight Commander of the Order of the Bath in 1902. William Ramsay also received the Nobel Prize for Chemistry in 1904. It was awarded in recognition of his contributions in the discovery of the noble gases and for the determination of their places in the periodic table. Ramsay was also responsible for adding an entire new group to the periodic table. The only noble gas that he didn’t discover was radon.
Krypton is widely used today. It is employed in flashes for high-speed photography, in fluorescent lights along with argon, and in making neon signs that have a greenish-yellow light. (Neon alone glows red only).
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