Question

Why are metals good conductors of electricity?
(A) They have high melting point
(B) They gain electrons easily
(C) They have low resistance
(D) All of the above

Answer 1

Hint: Many factors are responsible for the metals to be called as good conductors of electricity. One of the foremost ones is the presence of free electrons in the metals which helps it for metallic bonding and thus, describing it as good conductors of electricity.

Complete answer:
Let us learn the basics of metals to know them better and answer the given illustration;
Metals can lose their electrons as the constituting electrons are held loosely in an atom. They have low resistance and high conductivity. Basically, they are good conductors of electricity as they have a lattice of atoms with free electrons.
But as of now, by looking towards the options we can say that option (C) will be correct as metals do have low resistance which eventually brings up the property of good conductors of electricity.

Therefore, option (C) is correct.

Additional information:
The other important properties of metals are;
High melting points
High density
Malleable and ductile
Opaque and lustrous
Solid at room temperature except mercury.

Note:
Do note that the metals are also good conductors of heat along with electricity as metal bonding consists of a sea of electrons responsible for the conduction of heat and electricity.