Why Is Metal A Good Conductor Of Electricity?

Conductivity depends on the material of the conductor.... Also the cross-sectional area of the conductor matters...... The length as well because the greater the length the greater the resistance.... And yet another factor is temperature.. Higher temperature has a lower resistance as the molecules vibrate more and transfer energy faster..

Metals are substances which have one, two or three electrons in their valence shells. They are found naturally as ores, in their raw form, beneath the surface of the earth. They are mined and processed for purification and use. The process is called metallurgy and is specific for different metals, involving different steps. Minerals are widely used on account of their unique properties. They are known to be strong and ductile. They also have high melting points and allow thermal and electrical conductivity, which means the easy flow of heat and electricity. These properties are responsible for the growing industrial and domestic use of metals.

The atoms in metals are attached to one another via strong and delocalized bonds. These bonds are formed by a cloud of valence electrons that are shared between positive metal ions or cations in a crystal lattice or network. The unique arrangement is such that the valence electrons have considerable mobility and this is the property that enables the transfer of or conductivity of heat and electricity.   

This property of metals makes them indispensable to the electronics industry. The ability of metals to be able to be drawn out into thin wires (ductility), together with the ability to conduct heat and electricity easily and without risk make metals ideal for industrial application.

What are the factors o  which the resistance of a conductor depends?

Because they are!!!!!!! I HATE QUESTIONS!!!!

So along as an electric field is not applied across the piece of material, there cannot be any net motion of the electrons in a particular direction.

Metal contain free electron which helps in conduction of electricity.metal contain atoms whose electron are not bound to their specific atoms.as electricity is flow of current and current is flow of charges.