Q.

Why do metals conduct electricity well?

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a

 Because they have a large number of free electrons

b

Because they are hard and durable

c

Because they are shiny and attractive

d

Because they have high melting points

answer is B.

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Detailed Solution

  • Metals are good conductors of electricity due to the presence of free electrons. 
  • The electrons that are not bound within the atom and are free to move are called free electrons.
  • These free electrons move easily through the metal and allow the metal to conduct an electric current.
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