Hoje, o cobre é um dos metais mais utilizados porque possui alta condutividade elétrica e térmica, pode ser facilmente fabricado, é dúctil e dá um bom polimento. Por volta de 3800 aC, o cobre foi transformado em bronze para armas e facas. Foi o primeiro metal usado por humanos, provavelmente por volta de 8.000 aC, nas regiões da Mesopotâmia e da Índia. Elemento metálico puro com o símbolo Cu e o número atômico 29 um metal dúctil marrom avermelhado que está presente na crosta terrestre, ocorrendo como um metal nativo e como minérios de sulfeto, sulfato e carbonato (azurita, malaquita, etc.). Ook te gebruiken voor het metaal wanneer het woirdt bewerkt en gevormd om, meestal in combinatie met andere stoffen, verschillende voorwerpen en materialen te maken. Te gebruiken voor het zuivere metaalelement met het symbool Cu en het atoomnummer 29 het is roodachtig van kleur en is zeer smeedbaar en kneedbaar. elements (chemical substances) ( G)ĭutch. Kobber ( Norwegian (Nynorsk)-P, AD, U, SN) Kobber ( C, U, Norwegian (Bokmål)-P, AD, U, SN) Copper and its alloys are used for wire, electrical devices, pipes, cooking vessels, ammunition, ornamental trim, roofing, grillwork, coins, musical instruments, jewelry, and sculptures.Ĭopper (metal) ( preferred, C, U, LC, English-P, D, U, N)Ĭu (copper) ( C, U, CO, English, UF, U, N)Ĭuivre (metal) ( C, U, French-P, D, U, N) Metallic copper combines well with other metals to form alloys, most commonly brass and bronze. In moist air, copper forms a protective green film of basic carbonate. Today, copper is one of the most widely used metals because it has high electrical and thermal conductivity, can be easily fabricated, is ductile and polishes well. By about 3800 BCE copper was made into bronze for weapons and knives. It was the first metal used by humans, probably from about 8000 BCE, in the regions of Mesopotamia and India. Note: Pure metallic element having the symbol Cu and atomic number 29 a reddish brown, ductile metal that is present in the earth's crust, occurring as a native metal and as ores of sulfide, sulfate and carbonate (azurite, malachite, etc.). Semantic View ( JSON, RDF, N3/Turtle, N-Triples)Ĭopper (metal) (, nonferrous metal. Research Home Tools Art & Architecture Thesaurus Full Record Display
0 Comments
Leave a Reply. |