History of Atomic Theory Timeline Quiz
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Questions and Answers

Who was the first person to use the term 'atom' (atomos: meaning indivisible)?

  • John Dalton
  • Democritus (correct)
  • J.J Thomson
  • Aristotle
  • Who was the first scientist to adapt Democritus' theory into the first modern atomic model?

  • John Dalton (correct)
  • Democritus
  • Aristotle
  • J.J Thomson
  • Which scientist modified an earlier theory that matter was made of four 'elements' (earth, fire, water, air)?

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

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

    According to John Dalton's atomic model, what are all atoms of an element identical in?

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

    Study Notes

    Atomic Theory

    • Democritus was the first person to use the term 'atom' (atomos: meaning indivisible).

    Development of Atomic Model

    • John Dalton adapted Democritus' theory into the first modern atomic model.

    Four Elements Theory

    • Ancient Greek philosopher Empedocles modified an earlier theory that matter was made of four 'elements' (earth, fire, water, air).

    Electron Discovery

    • J.J. Thomson is credited for discovering the electron.

    Dalton's Atomic Model

    • According to John Dalton's atomic model, all atoms of an element are identical in mass, size, and properties.

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    Description

    Test your knowledge of the history of atomic theory with this timeline quiz! Learn about the contributions of influential figures such as Democritus and Aristotle in shaping our understanding of atoms and matter.

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