The atomic theory

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Cards (21)

  • A Greek philosopher and scientist who lived on the south coast of Sicily between 492 BCE and 432 BCE
    Empedocles
  • "All matter was composed of four elements: fire, air, water, and earth"
  • He proposed the first theories that all matter was composed of four elements
  • He cut the stone in half and turn into smaller pieces into smaller pieces at some point he reached a piece so tiny it could no longer be divided
    Democritus
  • What does atomos mean?
    Indivisible
  • he suggested that Atomos were eternal and could not be destroyed
    Democritus
  • They rejected the theory of Democritus and accepted the theory of Empedocles
    Plato and Aristotle
  • Aristotle didn't believe in the theory of atoms because it would be putting a restriction on the gods
  • He added a fifth element which is "Aether"

    Aristotle
  • Dark matter consist of?
    90%