Copper (pronounced /ˈkɒpər/, KOP-ər) is a chemical element A chemical element is a pure chemical substance consisting of one type of atom distinguished by its atomic number, which is the number of protons in its nucleus. The term is also used to refer to a pure chemical substance composed of atoms with the same number of protons. Common examples of elements are iron, copper, silver, gold, hydrogen, carbon, with the symbol Cu (Latin Latin is an Italic language originally spoken in Latium and Ancient Rome. With the Roman conquest, Latin was spread to countries around the Mediterranean, including a large part of Europe. Romance languages, such as Aragonese, Corsican, Catalan, French, Italian, Portuguese, Romanian, and Spanish, are descended from Latin, while many others,: cuprum) and atomic number In chemistry and physics, the atomic number is the number of protons found in the nucleus of an atom and therefore identical to the charge number of the nucleus. It is conventionally represented by the symbol Z. The atomic number uniquely identifies a chemical element. In an atom of neutral charge, the atomic number is also equal to the number of 29. It is a ductile Ductility is a mechanical property used to describe the extent to which materials can be deformed plastically without fracture metal A metal is a chemical element that is a good conductor of both electricity and heat and forms cations and ionic bonds with non-metals. In chemistry, a metal is an element, compound, or alloy characterized by high electrical conductivity. In a metal, atoms readily lose electrons to form positive ions (cations). Those ions are surrounded by with very high thermal and electrical conductivity. Pure copper is rather soft and malleable and a freshly-exposed surface has a pinkish or peachy color. It is used as a thermal conductor In physics, thermal conductivity, k, is the property of a material that indicates its ability to conduct heat. It appears primarily in Fourier's Law for heat conduction. Thermal conductivity is measured in watt per kelvin per metre . Multiplied by a temperature difference (in Kelvin, K) and an area (in square metres, m2), and divided by a, an electrical conductor In science and engineering, a conductor is a material which contains movable electric charges. In metallic conductors, such as copper or aluminum, the movable charged particles are electrons . Positive charges may also be mobile in the form of atoms in a lattice that are missing electrons (known as holes), or in the form of ions, such as in the, a building material, and a constituent of various metal alloys An alloy is a partial or complete solid solution of one or more elements in a metallic matrix. Complete solid solution alloys give single solid phase microstructure, while partial solutions give two or more phases that may be homogeneous in distribution depending on thermal history. Alloys usually have different properties from those of the.
Copper metal and alloys An alloy is a partial or complete solid solution of one or more elements in a metallic matrix. Complete solid solution alloys give single solid phase microstructure, while partial solutions give two or more phases that may be homogeneous in distribution depending on thermal history. Alloys usually have different properties from those of the have been used for thousands of years. In the Roman era, copper was principally mined on Cyprus Cyprus , officially the Republic of Cyprus (Greek: Κυπριακή Δημοκρατία, Kypriakī́ Dīmokratía, [kʲipɾiaˈkʲi ðimo̞kɾaˈtia]; Turkish: Kıbrıs Cumhuriyeti), is a Eurasian island country in the Eastern Mediterranean, south of Turkey and west of Syria and Lebanon. It is the third largest island in the Mediterranean Sea and, hence the origin of the name of the metal as Cyprium, "metal of Cyprus", later shortened to Cuprum. There may be insufficient reserves to sustain current high rates of copper consumption.[1] Some countries, such as Chile Chile, officially the Republic of Chile , is a country in South America occupying a long, narrow coastal strip between the Andes mountains to the east and the Pacific Ocean to the west. It borders Peru to the north, Bolivia to the northeast, Argentina to the east, and the Drake Passage in the far south. With Ecuador it is one of two countries in and the United States ^ b. English is the de facto language of American government and the sole language spoken at home by 80% of Americans age five and older. Spanish is the second most commonly spoken language, still have sizable reserves of the metal which are extracted through large open pit mines.
Copper compounds are known in several oxidation states, usually 2+, where they often impart blue or green colors to natural minerals such as turquoise Turquoise is an opaque, blue-to-green mineral that is a hydrous phosphate of copper and aluminium, with the chemical formula Cu and have been used historically widely as pigments. Copper as both metal and pigmented salt, has a significant presence in decorative art The decorative arts are a traditional term for a number of arts and crafts for the making of ornamental and functional works in a great range of materials including ceramic, wood, glass, metal, textiles and many others. The field includes ceramics, glassware, furniture, furnishings, interior design, but not usually architecture. The decorative. Copper 2+ ions are soluble in water, where they function at low concentration as bacteriostatic substances and fungicides. For this reason, copper metal can be used as an anti-germ surface that can add to the anti-bacterial and antimicrobial features of buildings such as hospitals.[2] In sufficient amounts, copper salts can be poisonous to higher organisms as well. However, despite universal toxicity at high concentrations, the 2+ copper ion at lower concentrations is an essential trace nutrient A nutrient is a chemical that an organism needs to live and grow or a substance used in an organism's metabolism which must be taken in from its environment. Nutrients are the substances that enrich the body. They build and repair tissues, give heat and energy, and regulate body processes. Methods for nutrient intake vary, with animals and to all higher plant Vascular plants are those plants that have lignified tissues for conducting water, minerals, and photosynthetic products through the plant. Vascular plants include the ferns, clubmosses, flowering plants, conifers and other gymnosperms. Scientific names for the group include Tracheophyta and Tracheobionta, but neither name is very widely used.[ and animal life. In animals, including humans, it is found widely in tissues, with concentration in liver, muscle, and bone. It functions as a co-factor A cofactor is a non-protein chemical compound that is bound to a protein and is required for the protein's biological activity. These proteins are commonly enzymes and cofactors can be considered "helper molecules" that assist in biochemical transformations. Cofactors can also be classified depending on how tightly they bind to an enzyme, in various enzymes Enzymes are proteins that catalyze chemical reactions. In enzymatic reactions, the molecules at the beginning of the process are called substrates, and the enzyme converts them into different molecules, called the products. Almost all processes in a biological cell need enzymes to occur at significant rates. Since enzymes are selective for their and in copper-based pigments A pigment is a material that changes the color of reflected or transmitted light as the result of wavelength-selective absorption. This physical process differs from fluorescence, phosphorescence, and other forms of luminescence, in which a material emits light.
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Reuters
santiago (Reuters) - Chile's biggest copper mines affected by a massive earthquake were set to resume operations on Sunday, but analysts feared power ...
Codelco Copper Mines to Reopen Shortly, Chilean Minister Says BusinessWeek
Copper To Jump, Markets End February With Gains International Business Times Australia
Massive quake halts production of copper mines in Chile Shanghai Daily
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Greg McElhatton
Mon, 15 Feb 2010 08:00:34 GM
One of my favorite webcomics is Kazu Kibuishi's . Copper. , so a collection of all the stories to date was going to be an automatic winner in my house. For fans who devoured all the strips online, there's still an attraction for the print ...
