Atomic theory

Atomic Theory Timeline

By MartinCYY
  • 400

    Democritus

    Democritus
    A Greek philosopher Democritus that said matter is made up of small particles called atoms.

  • John Dalton

    John Dalton
    He was a British scientist and a school teacher. He reminds everyone the idea of atoms with evidence to support his tohughts.

  • J.J Thomson

    J.J Thomson
    He was a British scientist finds that electrons are particels that are in every atom.

  • Ernest Rutherford

    Ernest Rutherford
    He was a physicist from New Zealand, and he discovered protons in the nucleus of the atom.

  • Bohr

    Bohr
    He was a scientist that invented the Electron Cloud.

  • Modern Atomic Theory

    Modern Atomic Theory
    The Modern Atomic Theory that states everything is made out of atoms.