atomics of basic electricity + conductors, insulators, semiconductors

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4 Terms

1
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what particles make up an atom?

  • electrons (negatively charged)

  • protons (positively charged)

  • neutrons (neutral)


2
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which particles’ movement creates electricity?

  • electricity is created by the movement of electrons.


3
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How do conductors, insulators, and semiconductors differ? 

  • conductors: electrons move freely

    • ex; metals like copper and gold

  • insulators: electrons cannot flow

    • ex; rubber

  • semiconductors: in between conductors and insulators. we can control them by adding voltage or current to them.

    • ex; transistors


4
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Why are copper, gold, and silver good conductors? 

  • because their electrons are loose and can easily move.