Cd Kadmij 48 112.411 12 5 d 48 320.9 765.0 [Kr] 4d10 5s2 2 8 18 18 2 8.65 0.000015% Silver Hexagonal 1.7 1.52 {"1":"867.8","2":"1631.4","3":"3616"} 868 0 148 2 1.71 13.1 6.07 99.87 0.233 96.8 0 Solid, Diamagnetic, Conductor, TransitionMetal, Metal, Stable, Natural KAD-me-em Soft, malleable, blue-white metal. Used in nickel-cadmium batteries. Also in electroplating steel and in the manufacture of berings. Its compounds are found in paint pigments and a wide variety of intense colors. Boiling cadmium gives off a weird, yellow-colored vapor that is poisonous. Obtained as a by product of zinc refining. boRius1DYdQ Cadmium

Škotski kemičar sir William Ramsay i njegov pomoćnik, engleski kemičar Morris Travers otkrili su kripton 1898. u Londonu.

Pronašli su kripton u ostatku preostalom nakon isparavanja gotovo svih sastojaka tekućeg zraka.

William Ramsay je dobio Nobelovu nagradu za kemiju 1904. za otkriće niza plemenitih plinova, uključujući kripton. Od grčke riječi kryptos, skriven 48 1817 Friedrich Strohmeyer Germany Somewhat confusingly, from the Latin word "cadmia" meaning "calamine" (zinc carbonate, ZnCO3) and from the Greek word "kadmeia" with the same meaning.

Krypton is considered to be non-toxic

When ionized, krypton gas emits bright white light

Krypton is used in certain photographic flash lamps for high-speed photography.

Krypton-83 has application in magnetic resonance imaging (MRI) for imaging airways.

Krypton is used as a filling gas for energy-saving fluorescent lights and as an inert filling gas in incandescent bulbs.