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

Tangent galvanometer, what is the principle of tangent galvanometer?

what is the principle of tangent galvanometer?

Illustrates quantum theory of black body radiation by planck, Illustrates t...

Illustrates the quantum theory of black body radiation by Planck? Planck’s quantum theory of black body radiation Planck was investigating the properties of light-emitting a

Construction and working of nicol prism, Briefly explain with principle, th...

Briefly explain with principle, the construction and working of Nicol prism. Why the angle of incidence on Nicol prism would be around 14 o .

What is avalanche breakdown, What is Avalanche Breakdown Minority ca...

What is Avalanche Breakdown Minority carriers, under reverse biased conditions, flowing through  the  junction  acquires  a  kinetic  energy  that increases  with  increase

Illustrates some applications of holography, Illustrates some applications ...

Illustrates some applications of holography? Applications of Holography Holography can be put to many of uses other than recording images. Holographic data storage is a proc

What are the affect does electricity have on the soil, Q. What are the affe...

Q. What are the affect does electricity have on the soil? Answer:- Electrical current and ions are able to cause certain molecules (and moisture) to adhere to soil. Large

Cadmium rods are provided in a nuclear reactor, Cadmium rods are provided i...

Cadmium rods are provided in a nuclear reactor. Why? Cadmium rods are given in nuclear reactors due to when we begin nuclear reactor then more energy is required for start the

Continuous emission spectrum, (i) It has of continuously varying wavelength...

(i) It has of continuously varying wavelengths in a exact wavelength range. (ii) It is given by solids, liquids and highly compressed gases heated to high temperature. (iii)

Capacitors in series, Capacitors in series: When three capacitors are c...

Capacitors in series: When three capacitors are connected in series.  If one electron moves from the negative terminal of the cell to the right hand plate of C 3 , and one elec

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