Krypton is a chemical element with the symbol Kr and atomic number 36. It is a colorless, odorless, tasteless noble gas that occurs in trace amounts in the atmosphere and is often used with other rare gases in fluorescent lamps. With rare exceptions, krypton is chemically inert. Krypton, like the other noble gases, is used in lighting and photography. Krypton light has many spectral lines, and krypton plasma is useful in bright, high-powered gas lasers, each of which resonates and amplifies a single spectral line. Krypton fluoride also makes a useful laser medium. From 1960 to 1983, the official length of a meter was defined by the 606-nanometer wavelength of the orange spectral line of krypton-86, because of the high power and relative ease of operation of krypton discharge tubes.
关于Krypton
Set on the eponymous planet about 200 years before the birth of Superman, the series is centered on Superman's grandfather Seg-El fighting for justice.
Krypton的成就
The series was developed by Man of Steel and Batman Begins screenwriter David S. Goyer.
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Isotopes of krypton - There are 33 known isotopes of krypton with atomic mass numbers from 69 through 101. Naturally occurring krypton is made of five stable isotopes and one which is slightly radioactive with an extremely long half-life, plus traces of radioisotopes that are produced by cosmic rays in the atmosphere.. Krypton fluoride laser - A krypton fluoride laser is a particular type of excimer laser, which is sometimes called an exciplex laser.. Noble gases.. Chemical elements.
