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

What are the magnitude and the direction of rider velocity, A park ride is ...

A park ride is designed so that the rider is on the edge of a revolving platform, 3.5 m from the platform's center. This platform is mounted 8.0 m from the center of a larger revol

Explain diffraction grating and the screen, A diffraction grating with slit...

A diffraction grating with slits separated by 3.40 x 10 -6 m is illuminated by light with a wavelength of 589 nm. The separation between lines in the diffraction pattern is 0

How cph takes spin and converts to graviton, How CPH takes spin and convert...

How CPH takes spin and converts to graviton? Answer- A CPH Principle says a CPH moves with constant speed as Vc, Vc>c in any inertial frame and any space, therefore that

Binding Energy per nucleon, The average energy needed to release a nucleon ...

The average energy needed to release a nucleon from the nucleus is known as binding energy per nucleon.   Binding energy per nucleon diffrence  Stability of nucleus

Disadvantage of low power factor, Disadvantage of low Power Factor  We ...

Disadvantage of low Power Factor  We know that   P = V I cos φ,  for particular amount of power at constant voltage, Power (P) and voltage (V) in the above expression of

Photo-electric effect, It is the phenomenon of emission of electrons from t...

It is the phenomenon of emission of electrons from the surface of metals, when light radiations (Electromagnetic radiations) of suitable frequency drop on them. The emitted electro

Describe critical angle, The measurements taken in Ramdesns eyepiece more w...

The measurements taken in Ramdesns eyepiece more worthy (reliable) than Huygens eyepiece. Why? Describe critical angle. show its relationship with refractive index.

Periodic Table, what are some properties of transition metals

what are some properties of transition metals

Explain antenna, Explain Antenna. Write a short note or Antenna. Name two p...

Explain Antenna. Write a short note or Antenna. Name two parts of antenna.

Draw a force diagram, The magnitude of a charge, q, is to be determined by ...

The magnitude of a charge, q, is to be determined by transferring the charge equally to two pith balls. Each of the pith balls has a mass of m, and is suspended by an insulating th

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