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Copper is a chemical element; it has symbol Cu (from Latin cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orange color.
- Copper (Disambiguation)
Copper, the Manhattan Project's codename for plutonium;...
- Copper Extraction Techniques
Copper extraction refers to the methods used to obtain...
- Native Metals
The same deposits of native copper on the Keweenaw Peninsula...
- List of Copper Ores
Following is a list of minerals that serve as copper ores in...
- Standard Atomic Weight
Example: copper in terrestrial sources. Two isotopes are...
- Cupronickel
Cupronickel or copper–nickel (CuNi) is an alloy of copper...
- Copper in biology
Copper is an essential trace element (i.e., micronutrient)...
- Copper conductor
Copper is the electrical conductor in many categories of...
- Copper (Disambiguation)
- Properties
- Occurrence
- Uses
- Safety
- Preparation
Physical properties
Copper is a reddish-orange color when it is pure, but soon gets a reddish tarnishafter it is exposed to air. Copper is one of the few coloured metals. Most metals are gray or silver. Gold, copper, caesium and osmium are the only four coloured metals. It is magnetic. Copper is green as copper(II) carbonate and copper(II) hydroxide. It turns green because it oxidizes. After a time in the air, copper forms green copper carbonate at the surface, called verdigris. That is why the copper roof of a...
Compounds
Copper forms chemical compounds. In these compounds, it has two normal oxidation states: +1 and +2. +2 is more common. Most +2 copper compounds are blue. +1 copper compounds can be white. Copper compounds are weak oxidizing agents. They corrode many metals. This corrosion takes the metal and puts it in the chemical compound, leaving the copper behind. An example would be iron and copper(II) sulfate reacting to make copper and iron(II) sulfate. +1 copper compounds are reducing agents when in a...
Copper can be found as a metal in the ground. Normally, it is green on the outside. Most copper is not as a metal but in chemical compounds. Chalcopyrite is the most common copper ore. It is a mixture of pyrite and copper sulfide. Copper is found in small amounts in living things. Some mollusks and arthropodshave blue blood because they have copper...
Copper can be used in many ways but one example is wires. Copper is used in making wires as it is easy to stretch and it is not expensive. So that’s why large wire companies will use copper as it is cheaper and takes less time to get Copper may be the oldest metal in use, as very old copper tools have been found. Copper is used in electrical wiring...
Copper is not as toxic as a metal. Copper compounds are toxic, although small amounts are needed to live. Copper is expelled from the body easily, so it does not build up in toxic effects.
Copper is sometimes just taken out of the ground and shaped into objects. But most copper is not in a metal form in the ground. Chalcopyrite is the main copper ore. It is heated with air to separate the iron as iron(II) oxide. Some copper(I) oxide is made. Sulfur dioxide is also made. Then silicon dioxide is added, which reacts with the iron(II) ox...
6 days ago · Learn about copper, a reddish, extremely ductile metal of Group 11 of the periodic table that is an unusually good conductor of electricity and heat. Find out how copper is produced, used, and alloyed with other metals, and see its occurrence, distribution, and history.
- The Editors of Encyclopaedia Britannica
Copper is a chemical element; it has symbol Cu ( from Latin cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orange color.
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