Atomic Model

By Austyn2
  • Democritus 370 B.C.

    Democritus 370 B.C.

    Matter can't be divided into smaller and smaller pieces forever. Named smallest piece "Atomos" meaning not to be cut.
  • John Dalton

    John Dalton

    Law of porportion, Solid Sphere model
  • J.j Thomson

    J.j Thomson

    Expirements of conduction of electricity by gasses
  • Robert Millikan

    Robert Millikan

    Charge carried by electrons,found that it was constant for all electrons
  • Neils Bohr

    Neils Bohr

    Said electrons orbit the nucleus without losing energy can only move in made the planetary model

  • Albert Einstein

    Discovery of photoelectric effect
  • Louis de Broglie

    Louis de Broglie

    Thought that electrons could be both particle and waves. Proven by electron beams bending through a slit
  • Wolfgang Pauli

    Wolfgang Pauli

    Made the exclusion principle (Pauli Principle)
  • Werner Heisenberg

    Werner Heisenberg

    quantum mechanics theory
  • Erwin Schödinger

    Erwin Schödinger

    Made a set of equations or wave functions for electrons.
  • Ernest Rutherford

    Ernest Rutherford

    Disinigration of elements and chemistry of radioactive substances.
  • James Chadwick

    James Chadwick

    Identified the neutron. With no mass just a charge.

  • Works Cited

    "HISTORY OF THE ATOM FROM DEMOCRITUS TO BOHR AND SCHRÖDINGER." HISTORY OF THE ATOM FROM DEMOCRITUS TO BOHR AND SCHRÖDINGER. N.p., n.d. Web. 25 Sept. 2013. "History of Atoms." History of Atoms. N.p., n.d. Web. 25 Sept. 2013.