History of Atomic Theory Timeline
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Questions and Answers

Who is credited for adapting Democritus' theory into the first modern atomic model?

  • Democritus
  • Aristotle
  • John Dalton (correct)
  • J.J. Thomson
  • Which scientist proposed the theory that matter was made of four elements: earth, fire, water, and air?

  • J.J. Thomson
  • Aristotle (correct)
  • Democritus
  • John Dalton
  • Who was the first person to use the term 'atom'?

  • John Dalton
  • Democritus (correct)
  • J.J. Thomson
  • Aristotle
  • Which scientist is credited for discovering the electron using cathode ray tube technology?

    <p>J.J. Thomson</p> Signup and view all the answers

    According to John Dalton's atomic model, what are atoms of different elements identical in?

    <p>Size, mass, and shape</p> Signup and view all the answers

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