Atomic Theory Timeline BC

Timeline created by 2116105
  • 370

    Aristotle

    Rejected Democritus’ theory and agreed with Empedocles. He added qualities to Empedocles theory these quantities are: dry, moist, hot, and cold.
  • 400

    Plato

    Thought that the idea of atomic forms was beyond the capability of the human senses.
  • 420

    Democritus

    Maintained Leucippus’ ideas and formulated that the properties of substances can be described by the shapes and arrangement of atoms.
  • 450

    Empedocles

    Described matter with 4 different components: Earth, Air, Fire, and water. Created the idea that there are elemental substances.
  • 478

    Leucippus

    He created the idea of atoms.
  • Period:
    100
    to
    Jan 1, 600

    Before Christ