Chemistry Timeline

  • John Dalton was born

  • John Dalton

    enunciated the law of the expansion of gases
  • John Dalton

    explains principle of volumetric analysis.
  • John Dalton

    passed away
  • JJ Thomson was born

  • Ernest Ruthorford was born

  • Neils Bohr is born

  • Erwin Schrodinger is born

  • Ernest Ruthorford

    shows that xrays break gases down into small charged ions
  • JJ Thomson

    discovered the electron and that they were negitvely charged patricles in motion.
  • Warner Heisenburg is born

  • JJ Thomson

    made the model of an atom as a sphere of positive matter in which electrons positioned by electrostatic foreces.
  • Ernest Ruthorford

    describes the nature of an alpha particle as a heluim atom with a double charge.
  • Ernest Ruthorford

    discovered the atomic nucleus and proposes the planetary model of an atom.
  • Neils Bohr

    recieved his doctorate, and he introduced the theory of electrons traveling in orbit around nucleus, radiation is reduced.
  • Erwin Schrodinger

    developed quantum theory
  • Erwin Schrodinger

    led a lecture traveling through US, Japan, and India.
  • Erwin Schrodinger

    Wrote schrodingers equation
  • Erwin Schrodinger

    said that electrons have no certain points, and he discovered the electron cloud.
  • Ernest Ruthorford

    preforms first fusion reaction.
  • Ernest Ruthorford

    passed away
  • Erwin Schrodinger

    plasma physics and thermometer practice.
  • Neils Bohr passes away