History of ATomic Theory Project

  • 410

    Democrtus

    Democrtus
    Democritus Atom
    Democritus lived from 460 BC to 370 BC. He contributed the first Theory of Atoms. He claimed that everything is made of atoms.
  • John Dalton

    John Dalton
    http://antoine.frostburg.edu/chem/senese/101/atoms/dalton.shtml
    John Dalton came up with the first working atomic theory. He veiwed evaporation as mixing water and air particals.
  • J.J Thomson

    J.J Thomson
    J.J Thomson
    J.J Thomson came up with the theory that there are things smaller than an atom called "corpuscle". He said that they have a negative charge coming of them.
  • Ernest Rtherford

    Ernest Rtherford
    Ernest Rutherford
    Ernest Rutherford procved JJ Thomson wrong and came up with the first working atomic theory.
  • Niels Bohr

    Niels Bohr
    Niels Bohr
    He came up with the hydrogen theory of the atom.
  • James Chadwick

    James Chadwick
    James Chadwick
    James Chadwick came up with the neutron.