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.
Nickel (United States coin) - Wikipedia
A 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 since 1866. Its diameter is 0.835 inches (21.21 mm) and its thickness is 0.077 inches (1.95 mm). The silver half dime, equal to five cents, was issued from 1792 to 1873 before today's cupronickel version.
Nickel - Simple English Wikipedia, the free encyclopedia
Nickel is made from its sulfide by heating it in air. This oxidizes the sulfide to sulfur dioxide, leaving liquid nickel behind. This nickel is not yet pure and not ready for use. Pure nickel with a nickel content greater than 99% is made in an electrolytic process. In this process, the nickel is dissolved in bath of sulfuric acid.
Nickel | Definition, Properties, Symbol, Uses, & Facts | Britannica
2024年11月5日 · Nickel, chemical element, ferromagnetic metal of Group 10 (VIIIb) of the periodic table, markedly resistant to oxidation and corrosion. Silvery white, tough, and harder than iron, nickel is widely familiar because of its use in coinage but is more important as the pure metal or in the form of alloys.
Isotopes of nickel - Wikipedia
Nickel-58 is the most abundant isotope of nickel, making up 68.077% of the natural abundance. Possible sources include electron capture from copper-58 and EC + p from zinc-59 . Nickel-59 is a long-lived cosmogenic radionuclide with a half-life of 76,000 years.
Nickel compounds - Wikipedia
Nickel 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 transition metal with nickel(II) having much chemical behaviour in common with iron(II) and cobalt(II).
Nickel Element Facts and Properties - ThoughtCo
2019年7月3日 · Nickel is a silvery white metal that takes a high polish. Nickel is hard, ductile, malleable, and ferromagnetic. It is a fair conductor of heat and electricity. Nickel is a member of the iron-cobalt group of metals (transition elements).
Nickel - Element information, properties and uses | Periodic Table
Element Nickel (Ni), Group 10, Atomic Number 28, d-block, Mass 58.693. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images. Jump to main content
10 Nickel Element Facts (Atomic Number 28 or Ni) - ThoughtCo
2021年8月12日 · Nickel is the 5th most abundant element in the Earth, but only the 22nd most abundant element in the crust (84 parts per million by weight). Scientists believe nickel is the second most abundant element in the earth's core, after iron.
Nickel (Canadian coin) - Wikipedia
The Canadian five-cent coin, commonly called a nickel, is a coin worth five cents or one-twentieth of a Canadian dollar. It was patterned on the corresponding coin in the neighbouring United States. It became the smallest-valued coin in the currency …