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

F=ma and f - ma = 0 are they similar or not?, Ans) In the first one..... F=...

Ans) In the first one..... F=ma...the only force which acts is F...which causes an acc. of ''a'' to the body of mass m... and as the force=>F=ma but on the second... let .

What are ferromagnetic substances, a) Formation of domains b) On the bas...

a) Formation of domains b) On the basis of domains formed c) These are strongly attracted in an external magnetic field i.e. they easily go from low to high field region d

Describe the shape of the charged particle''s path, A charged particle is m...

A charged particle is moving in a UNIFORM magnetic field.  If the direction of motion of the charged particle is parallel to the magnetic field, describe the shape of the charged p

Free electron theory and band theory of solids, Q. What is the dissimilarit...

Q. What is the dissimilarity between Free Electron Theory and Band Theory of solids? Answer:- The Free Electron Theory This theory notifies that metals conduct electric

Explain the single mode fibres in intermodal dispersion, Explain about the ...

Explain about the single mode fibres in intermodal dispersion. Into single mode fibers, the core size of the fibre is decreased to 3 to 9µm so that this supports simply axial m

Light, does lights of different wavelengths help us to see different colour...

does lights of different wavelengths help us to see different colour

Manganin is an alloy of which materials, Manganin is an alloy of (A) C...

Manganin is an alloy of (A) Copper, manganese and nickel. (B) Copper and manganese. (C) Manganese and nickel.               (D) Manganese, aluminium and nickel. Ans:

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)

Relation between velocity wavelength and frequency, Relation among velocity...

Relation among velocity wavelength and Frequency: Consider a wave of wavelength , frequency f and travelling with velocity v. The distance travel by the sound wave during 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