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Encyclopedia > Base metal

In chemistry, the term base metal is used informally to refer to a metal that oxidizes or corrodes relatively easily, and reacts variably with diluted hydrochloric acid (HCl) to form hydrogen. Examples include iron, nickel, lead and zinc. Copper is considered a base metal as it oxidizes relatively easily, although it does not react with HCl. It is commonly used in opposition to noble metal. Chemistry - the study of atoms, made of nuclei (center particles) and electrons (outer particles), and the structures they form. ... Hot metal work from a blacksmith In chemistry, a metal (Greek: Metallon) is an element that readily loses electrons to form positive ions (cations) and has metallic bonds between metal atoms. ... The most fundamental reactions in chemistry are the redox processes. ... Corrosion is deterioration of essential properties in a material due to reactions with its surroundings. ... The chemical compound hydrochloric acid is the aqueous (water-based) solution of hydrogen chloride gas (HCl). ... This article is about the chemistry of hydrogen. ... General Name, Symbol, Number iron, Fe, 26 Chemical series transition metals Group, Period, Block 8, 4, d Appearance lustrous metallic with a grayish tinge Atomic mass 55. ... General Name, Symbol, Number nickel, Ni, 28 Chemical series transition metals Group, Period, Block 10, 4, d Appearance lustrous, metallic and silvery with a gold tinge Atomic mass 58. ... For PB or pb as an abbreviation, see PB. General Name, Symbol, Number lead, Pb, 82 Chemical series poor metals Group, Period, Block 14, 6, p Appearance bluish gray Atomic mass 207. ... General Name, Symbol, Number zinc, Zn, 30 Chemical series transition metals Group, Period, Block 12, 4, d Appearance bluish pale gray Atomic mass 65. ... General Name, Symbol, Number copper, Cu, 29 Chemical series transition metals Group, Period, Block 11, 4, d Appearance metallic pinkish red Atomic mass 63. ... Noble metals are metals that are resistant to corrosion or oxidation, unlike most base metals. ...


In alchemy, a base metal was a common and inexpensive metal, as opposed to precious metals, mainly gold and silver. A longtime goal of the alchemists was the transmutation of base metals into precious metals. For other uses, see Alchemy (disambiguation). ... A gold nugget A precious metal is a rare metallic chemical element of high economic value. ... General Name, Symbol, Number gold, Au, 79 Chemical series transition metals Group, Period, Block 11, 6, d Appearance metallic yellow Atomic mass 196. ... General Name, Symbol, Number silver, Ag, 47 Chemical series transition metals Group, Period, Block 11, 5, d Appearance lustrous white metal Atomic mass 107. ... // Transmutation is the conversion of one object into another. ...


In numismatics, coins used to derive their value primarily from the precious metal content. Most modern currencies are fiat currency, allowing the coins to be made of base metal. Numismatics is the scientific study of money and its history in all its varied forms. ... A gold nugget A precious metal is a rare metallic chemical element of high economic value. ... Look up fiat in Wiktionary, the free dictionary. ...


See also

In chemistry, the reactivity series is a series of metals, in order of reactivity from highest to lowest. ... The philosophers stone, in Latin lapis philosophorum, is a legendary substance that supposedly could turn inexpensive metals such as lead into gold (chrysopoeia in the Greek language) and/or create an elixir that would make humans younger, thus delaying death. ...

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  Results from FactBites:
 
The World Market for Office and Stationery Supplies Made of Base Metal: A 2007 Global Trade Perspective (848 words)
I have developed a methodology, based on macroeconomic and trade models, to estimate the market for office and stationery supplies made of base metal for those countries serving the world market via exports or supplying from various countries via imports.
Chapter 4 does the same, but for imports of office and stationery supplies made of base metal for all countries in the world.
The SITC code that defined office and stationery supplies made of base metal is 8951.
Metal - Wikipedia, the free encyclopedia (1019 words)
Metals are sometimes described as a lattice of positive ions surrounded by a cloud of delocalized electrons.
The metals are one of the three groups of elements as distinguished by their ionisation and bonding properties, along with the metalloids and nonmetals.
Traditionally, metals have certain characteristic physical properties: they are usually shiny (they have "lustre"), have a high density, are ductile and malleable, usually have a high melting point, are usually hard, and conduct electricity and heat well.
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