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  2. Nickel - Wikipedia

    • Nickel is a chemical element; it has symbol Ni and atomic number 28. It is a silvery-white lustrous metal with a slight golden tinge. Nickel is a hard and ductile transition metal. Pure nickel is chemically reactive, but large pieces are slow to react with air under standard conditions because a passivation layer of nickel oxide forms on the surface that prevents further c… See more

    AppearanceLustrous, metallic, and silver with a gold tinge
    Phase at STPsolid
    Melting point1728 K (1455 °C, 2651 °F)
    Boiling point3003 K (2730 °C, 4946 °F)
    Properties

    Nickel is a silvery-white metal with a slight golden tinge that takes a high polish. It is one of only four elements that are ferromagnetic at or near room temperature; the others are iron, cobalt and gadolinium. Its Curie temp… See more

    Compounds

    The most common oxidation state of nickel is +2, but compounds of Ni , Ni , and Ni are well known, and the exotic oxidation states Ni and Ni have been characterized.
    Nickel tetracarbonyl (Ni(CO)4), discovered by … See more

    History

    Unintentional use of nickel can be traced back as far as 3500 BCE. Bronzes from what is now Syria have been found to contain as much as 2% nickel. Some ancient Chinese manuscripts suggest that "white copp… See more

     
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  1. Nickel (United States coin) - Wikipedia

    WEBA nickel is a five-cent coin struck by the United States Mint. Composed of cupronickel (75% copper and 25% nickel), the piece has been issued …

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    • Nickel | Definition, Properties, Symbol, Uses, & Facts

      WEBNickel, chemical element, ferromagnetic metal of Group 10 (VIIIb) of the periodic table, markedly resistant to oxidation and corrosion. Silvery …

    • Nickel - Simple English Wikipedia, the free encyclopedia

    • Nickel compounds - Wikipedia

      WEBNickel compounds are chemical compounds containing the element nickel which is a member of the group 10 of the periodic table. Most compounds in the group have an oxidation state of +2. Nickel is classified as a …

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    • Nickel Metal: It's Properties, History, Production

      WEBLearn about the properties, history, production and uses of nickel, a strong, lustrous, silvery-white metal. Find out how nickel is extracted from different ores, how it strengthens stainless steel, and how it is used in batteries …

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