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by carlomaria
Last updated 4 years ago

Chemical Elements

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Physical Properties

1. Which one is the symbol of Copper?a) Cob) Cc) Cu 2. Copper is ductile and malleable. True or False. 3. Copper react with water. True or False. 4. Atomic number of Copper is:a) 29b) 39c) 9 5. Poor copper is soft and malleable. True or False. 6. Copper is not a good conductor of heat and electricity. True or False.


It is a ductile metal with very high thermal and electrical conductivity. Pure copper is soft and malleable; a freshly exposed surface has a reddish-orange color. It is used as a conductor of heat and electricity, a building material, and a constituent of various metal alloys.

Chemical Properties

Atomic number 29Atomic mass 63.546 g.mol -1Electronegativity according to Pauling 1.9Density 8.9 at 20°CMelting point 1083 °CBoiling point 2595 °CVanderwaals radius 0.128 nmIonic radius 0.096 nm (+1) ; 0.069 nm (+3)Isotopes 6Electronic shell [ Ar ] 3d10 4s1Energy of first ionisation 743.5 kJ.mol -1Energy of second ionisation 1946 kJ.mol -1Standard potential + 0.522 V ( Cu+/ Cu ) ; + 0.345 V (Cu2+/ Cu )Discovered by The ancients

Copper has been an essential material to man since pre-historic times. In fact, one of the major "ages" or stages of human history is named for a copper alloy, bronze. Copper and its many alloys have played an important role in many civilizations, from the ancient Egyptians, Romans to modern day cultures around the world. Here, you will find a number of reference materials detailing the role that copper has played throughout human civilization for thousands of years.

What is Copper?

Copper is a chemical element with symbol Cu and atomic number 29. It is a ductile metal with very high thermal and electrical conductivity. Pure copper is soft and malleable; a freshly exposed surface has a reddish-orange color.

The History of Copper

1. All gold contains some level of copper, even 24 karat gold. This is because gold is so soft, it can be molded with the hands and calls for a bit of copper to be added. 2. Professional chefs prefer to cook with copper pots and pans, as it delivers uniform cooking and has no heat spots. 3. Copper is naturally antibacterial. Brass doorknobs, handrails and fingerplates are excellent choices for public buildings and will prevent the spread of bacteria. 4. The Statue of Liberty is made from 179,000 pounds of copper.



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Presently, copper is used in building construction, power generation and transmission, electronic product manufacturing, and the production of industrial machinery and transportation vehicles. Copper is an essential component in the motors, wiring, radiators, connectors, brakes, and bearings used in cars and trucks.

What is Copper used for?

Facts about Copper


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