The History of the Atom

  • 460

    Democrates (460 BC)

    Democrates (460 BC)
    DemocritusHe named paritcles atoms
  • John Dalton

    John Dalton
    John DaltonBased his theory of Atoms on experiments. Also created many theories around atoms.
  • JJ Thompson

    JJ Thompson
    JJ ThompsonWas the first person to discover that atoms were created from smaller subatomic partacles.
  • Ernest Rutherford

    Ernest Rutherford
    Ernest RutherfordDiscovered that there were positive and negatively charges subatomic particles. Learned that there was a nucleus of an atom and that there was a nucleus with electrons flying around it.
  • Neils Bohr

    Neils Bohr
    Fixed Rutherford's model of the atom. Said that electrons with low energy orbit closer to the nucleus, and vice versa.
  • James Chadwick

    James Chadwick
    Neils BohrChadwick was credited with the discocery of a nevagive subatomic partacle, that he called the neutron