Why are metals good conductors of electricity?


Metals are an excellent conductor of electricity and heat because the atoms in the metals form a matrix through which outer electrons can move freely. Instead of orbiting their respective atoms, they form a sea of electrons that surround the positive nuclei of the interacting metal ions. The electrons then move freely throughout the electron sea.

  • Glass is used as an insulator because it has atoms that have electrons that are closely connected with each other.
  • Silver is the strongest conductor out of all known materials.
  • However, because silver is a relatively costly and sought-after material, it is not frequently used for its conductive properties.
  • Copper is less conductive than silver but is cheaper and commonly used as an effective conductor in household appliances.

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