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Atomic Theory Timeline

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by

Maria Angelica Cheng

on 7 July 2013

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Transcript of Atomic Theory Timeline

Atomic Theory Timeline
by Maria Angelica Cheng (Sy) of IG-PH
Dalton's Atomic Theory
1803
Electromagnetic Radiation
*James Maxwell: visible light consists of
electromagnetic waves
1886
Eugene Goldstein: postulated
nucleus is made up of protons
1873
Wilhelm Roentgen
discovered the x-ray.
1895
Henri Becquerel discovered radioactivity by the use of uranium.
1896
Dalton's
Atomic Theory

Electromagnetic Radiation
*James Maxwell: visible light
consists of electromagnetic waves
Eugene Goldstein: postulated nucleus is made up of protons
*J.J. Thomson discovered electron by the use of cathode-ray tubes.
*Plum pudding Model
*Planck's constant
*Max Planck discovered
energy is in fact quantized.
Albert Einstein
Photoelectric Effect
Robert Millikan performed an
oil drop experiment which led
him to the magnitude of the electron charge.
Ernest Rutherford discovered the nuclear atom and proton by a thin gold foil experiment.
*Henry G.J. Moseley discovered the atomic number.
*The Bohr Model
Louis de Broglie's equation
*Schrodinger's Equation
*The Born Interpretation
Heisenberg Uncertainty Principle
The neutron was discovered
by James Chadwick.
1932
1927
1926
1923
1913
1911
1909
1905
1900
1897
1896
1895
1886
1873
1803
By Maria Angelica "Maan' Cheng (Sy)
Atomic Theory Timeline
Full transcript