| 
  • If you are citizen of an European Union member nation, you may not use this service unless you are at least 16 years old.

  • You already know Dokkio is an AI-powered assistant to organize & manage your digital files & messages. Very soon, Dokkio will support Outlook as well as One Drive. Check it out today!

View
 

29 Cu - Copper

Page history last edited by Kelly 7D 11 years, 11 months ago

Copper - Cu

 

  

 

 

Name: Copper

 

Symbol: Cu

 

Atomic Number: 29

 

Atomic Mass: 63.546

 

Group: 11

 

Period: 4

 

Type of Element: Transition Metal

 

State of Matter at 22OC: Solid

 

Density: 8.92 g/cm3

 

Melting Point: 1084.62 °C

 

Boiling Point: 2927 °C

 

Color: Copper

 

Discovered: about 8000 BC to 9000 BC (no one knows who discovered it since ancient time)

 

Picture of the Element: 

 

 

History

Copper was evident to had been used for at least 11000 years. People discovered ways to extract the copper out from its ores about 7000 years ago. Copper wasn’t historically listed to be found by any specific person but it was known in the ancient time. In the Romans time, copper was obtained, or take, from the island of Cyprus. The island Cyprus was where the name “copper” originated from. In today’s life, copper is usually mined and obtained from ores. The United States, Chile, Zambia, Zaire, Peru and Canada are where large deposits of copper ore are located at.

 



Uses

Copper is used widely as wires in electric industry. Only silver can be more electrical conductive than copper, therefore, it conducts electric very well and is usually used as a conductor. It also conducts heat well too. Copper had been used in coins due to its resistance of corrosion from air, moisture and seawater. Water pipes and jewelry are also made from copper as well as other items. Copper is also used to make medals for competitions. People don’t use pure copper though because pure copper is too soft for much uses. About 5000 years ago, people discovered how to make copper alloys by mixing copper with other elements to strengthen it.  One of the alloys from copper called bronze was used by early people to make weapons, tools, containers, and ornamental items. Another of the alloys called brass is used by the Romans to make coins, kettles and ornamental objects. Nowadays, brass is used to make some musical instruments, screws and other hardware that resist corrosion.

 

Compounds

The most important compounds are copper sulfate (CuSO4) and copper oxide (Cu2O) because of their use in agricultural poison and algaecide in water purification. 

 

Properties

Copper has a reddish color. The conductivity of copper is very high only second to silver. The half-life of copper is stable. Copper is soft under its pure form and takes on a bright metallic luster. When copper is exposed to air, it will gradually turn to a dull and brownish color. Copper slowly corrodes the form of carbonate verdigris when air and water is there. 

 

Comics!

 

Videos:


 

 

Fun facts about copper:

- The Statue of Liberty in New York is sheathed in more than 80 tonnes of copper.

- Cookware made by copper is highly-regarded by the world’s chefs.

- Copper can help prevent the spread of bacteria in water and air distribution systems made from it.

- If you look around you right now, you may see something that is consisted of copper.

- Did you know that an average home has 400 pounds of copper that is used in electrical, wiring, pipes and appliances?  

- All the gold contains a little bit of copper so that it will not me molded because of its softness.

- 1500 pounds of copper will be used by an average person just to enjoy today’s standard life. (Automobiles, phones, etc.)

- Copper can be recycled. In fact, 80 percents of the amount of copper that is produced is now still in use. Copper can actually 95 percents of its value.

 

Reference Links:

 

http://periodictable.com/Elements/029/data.html

http://wiki.answers.com/Q/What_is_copper's_state_of_matter_at_room_temperature

http://education.jlab.org/qa/discover_ele.html

http://www.rameria.com/inglese/history.html

http://www.whodiscoveredit.com/who-discovered-copper.html

http://www.wolframalpha.com/input/?i=basic+properties+of+copper

http://en.wikipedia.org/wiki/Copper#Characteristics

http://www.chemeddl.org/resources/ptl/

http://www.chemicool.com/elements/copper.html

http://education.jlab.org/itselemental/ele029.html

http://periodic.lanl.gov/29.shtml

http://www.crescentcitycopper.com/_blog/Copper_Blog/post/15_Fun_Facts_About_Copper/

http://www.eurocopper.org/copper/copper-usage.html

http://www.youtube.com/watch?v=8cyghkL-q0g&feature=player_embedded

http://www.youtube.com/watch?feature=player_embedded&v=kop1sWzTK-I 

  

 

 

Comments (0)

You don't have permission to comment on this page.