Copper : properties, uses and sources, Physics

Assignment Help:

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%.


Related Discussions:- Copper : properties, uses and sources

Soecific heat capacity, A lead bullet moves horizontally with a velocity of...

A lead bullet moves horizontally with a velocity of 130 ms-1 and embedded into a cement wall after collision. If the specific heat capacity of lead = 130 JKg-1°C-1 and all heat pro

Find out which tray will produce ice cubes first, Find out which tray will ...

Find out which tray will produce ice cubes first? Suppose you have two ice cube trays. One is filled with hot water and the other with cold water. Which tray will produce ice cu

Shear force diagram, Shear force diagram (SFD) and bending moment diagram (...

Shear force diagram (SFD) and bending moment diagram (BMD) are a graph of shear force / bending moment plotted against the horizontal axis x, indicating the shear force / bending m

Evaluate frequency to shatter the glass, Evaluate frequency to shatter the ...

Evaluate frequency to shatter the glass with a resonant vibration? Standing-wave vibrations are set up in a crystal goblet with four nodes and four antinodes equally spaced arou

Stefan-boltzmann constant, Stefan-Boltzmann constant; sigma (Stefan, L. Bol...

Stefan-Boltzmann constant; sigma (Stefan, L. Boltzmann) The constant of proportionality exist in the Stefan-Boltzmann law. It is equivalent to 5.6697 x 10 -8 W/m 2 /K 4 .

Horizontal ray reflacted by prism, A horizontal ray hitting a prism with n=...

A horizontal ray hitting a prism with n=1.5, tip angle α=4 o . The ray will be deflected by an angle δ=(n-1)α. The ray is further reflected by a vertical mirror. Now, if I want to

Need neuroscience assignment help, Neuroscience is a scientific study of t...

Neuroscience is a scientific study of the nervous system. Usually, neuroscience has been seen considered as a branch of biology. Thus, it is now present an interdisciplinary scien

Invention for that shockley-brattain-bardeen won nobel prize, Shockley, Bra...

Shockley, Brattain and Bardeen won a Nobel Prize for what small invention? Ans: Shockley, Bardeen and Brattain won a Nobel Prize for small invention of transistor.

LINEAR MOTION, what does slope of the tangent drawn on velocity -time graph...

what does slope of the tangent drawn on velocity -time graph at any instant of time give?

Describe the theory of black body, Describe the theory of black body. B...

Describe the theory of black body. Black body At an exact temperature the black body would produce the maximum amount of energy probable for temperature. This would emit at

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd