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    gadolinium (Gd)

    gadolinium
    Gadolinium.
    Image copyright: smart-elements.com
    A white metallic element of the lanthanide series, first isolated as the oxide in 1880 by J. C. Galissard de Marignac in Geneva; it is named after the Finnish chemist J. Gadolin. Chief ores are gadolinite, monazite, and bastnaesite. A malleable and ductile metal, its specialized uses include neutron absorption (important in many nuclear reactors) and the manufacture of certain alloys for making magnets and in the recording heads of video recorders. Its most common isotope is 158Gd (24.87%).


    atomic number 64
    relative atomic mass 157.25
    relative density 7.898
    melting point 1,311°C (2,392°F)
    boiling point 3,233°C (5,851°F)


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