Nickel

:This article is about the element nickel. See also nickel (U.S. coin) and nickel (Canadian coin).

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Nickel is a metallic chemical element in the periodic table that has the symbol Ni and atomic number 28.

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Nickel is silvery white metal that takes on a high polish. It belongs to the iron group, and is hard, malleable, and ductile. It occurs combined with sulfur in millerite, with arsenic in the mineral niccolite, and with arsenic and sulfur in nickel glance.

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On account of its permanence in air and inertness to oxidation, it is used in the smaller coins, for plating iron, brass, etc., for chemical apparatus, and in certain alloys, as German silver. It is magnetic, and is very frequently accompanied by cobalt, both being found in meteoric iron. It is chiefly valuable for the alloys it forms.

Nickel (U.S. coin): The United States five-cent coin, commonly called a nickel, is a unit of currency equaling one-twentieth, or five-hundredths, of a United States dollar....

Nickel (Canadian coin): A Canadian nickel is a coin worth five cents, patterned on the corresponding coin in the neighbouring United States, and introduced in Canada in 1922. Prior to that year, Canadian five-cent pieces were small silver coins, colloquially known as "fish scales" due to their having been very thin....

Chemical element: A chemical element, often called simply element, is the class of atoms which contain the same number of protons....

Nickel related Images and Photos (experimental)

Nickel Creek: Why Should the Fire Die?

Nickel Creek: Why Should the Fire Die?

Nickel Creek: Why Should the Fire Die?

Buckycubes Nickel 216 Piece Magnetic Toy