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Question

Which of the following properties are a result of free electrons to be present in metals?


  1. Good Heat conduction

  2. Good Electrical conduction

  3. High Density

  4. Both A & B


Solution

The correct option is D

Both A & B


The metallic bond is the cause for many of the properties of metals, such as strength, malleability, ductility, luster, conduction of heat and electricity.
Because the electrons move freely, the metal has some electrical conductivity. It allows the energy to pass quickly through the electrons, generating a current. Metals conduct heat for the same reason: the free electrons can transfer the energy at a faster rate.
 

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