Copper : properties, uses and sources, Physics

Copper

 

Atomic number

29

Symbol

Cu

Atomic weight

63.546

Discovery

Cu has been known since prehistoric time. It has been mined for more than 5000 years.

Electronic configuration

[Ar] 4s1 3d10

Word origin

Latin cuprum

Melting point

1083.4+/-0.2 degree centigrade

Boiling point

2567 degree centigrade

Specific gravity

8.96

Electrical resistivity

1.7*10-8 ohm-m

Properties:

(1)         Copper is reddish brown with a bright metallic luster.

(2)          It is malleable, ductile and a good conductors of heat and electricity.

(3)         It is nonmagnetic and is easily finished by plating or lacquering.

(4)         In can be easily welded, brazed and soldered.

(5)         It has poor resistance to oxidation. A copper oxide layer is formed on its surface, when it is exposed to atmosphere.

(6)         Its mechanical strength can be improved by allowing without sacrificing any other properties.

Uses:

(1)         Copper is widely used in wires, but bars, underground cable, overhead conductors, windings of transformers and generators, etc.

(2)         It is also used in plumbing and for cookware.

(3)         Copper compounds are toxic to invertebrates and are used as algaecides and pesticides.

(4)         It is also used in making coils.

Sources: Sometimes copper appears in its native state. It is found in many minerals including malachite, cuprites, malachite, cuprites, azurite etc. Copper deposits are known in North America, South America, and Africa. Copper is obtained by smelting, leaching and electrolysis of the copper-sulphides, oxides, and carbonates. Copper is commercially available at a purity of 99.999%.

Posted Date: 7/21/2012 7:44:19 AM | Location : United States







Related Discussions:- Copper : properties, uses and sources, Assignment Help, Ask Question on Copper : properties, uses and sources, Get Answer, Expert's Help, Copper : properties, uses and sources Discussions

Write discussion on Copper : properties, uses and sources
Your posts are moderated
Related Questions
Moderation: In a nuclear reactor, the fast moving neutron has to be slowed down by the use of Boron rods before they are able to cause further fission. The process of slowing d

An atom has the electronic configuration of .1s 2 2s 2 2p 6 3s 2 3p 6 3d 10 4s 2 4p 5 . Its atomic weight is 80. Its atomic number and the number of neutrons in its nucleus

why the blood come out of nose in the top of the mountain region?

Illustrates the research of electron microscopy? Research in electron microscopy includes: a. Materials qualification b. Electron beam induced deposition, and materials a

Imagine a small observer is positioned in front of the cork in your picture above. As the cork approaches, the observer measures the wavelength of the waves passing by. How does th

The following steps are taken in the manufacturing of a resistor: (1)         PREPARATION OF SUBSTRATE: Substrate should hold the resistive element. It should be a good insula

Two cars head out in the similar direction. Car A starts 1.0 min before car B. The position-time graphs for both cars are shown in the accompanying figure. a. How far apa

What is SI unit of force

what is thermal conductivity ?

As per the most established theory it is because of the rotation of the earth where by the several charged ions there in the molten state in the core of the earth rotate and consti