Atomic Theory Timeline Poster
Using your research guide to aid you, construct a timeline poster of the most important advancements in the
atomic theory, including who was responsible for the discovery, and what experiments they conducted, or
the observations they made that lead to their groundbreaking conclusion. The scientists to include in your
timeline are listed below, however, on your timeline they should be listed in the order of their discovery.
Good luck!
 Neils Bohr
 John Dalton
 Louis de Broglie & Erwin Schrodinger
 Ernest Rutherford
 J.J. Thompson
 Democritus
Each section of your poster should include all of the following information:
 Scientist and Year
 Name of model/theory
 Diagram of model
 Brief description of model
 Brief explanation of experiments leading to discovery
Atomic Theory Timeline Poster- Research Guide
Provided for you below are 6 research guides to aid you as you begin your investigation into the ever-evolving
theory of atomic structure. Using this research, you will construct a timeline of the most important
advancements in the atomic theory, including who was responsible for the discovery, and what experiments
they conducted, or the observations they made that lead them to their groundbreaking conclusion.
Scientist: Democritus
Diagram of Model:
Year of Discovery:
Name of Model/Theory:
Brief Explanation of Experiments Leading to Discovery:
Brief Description of Model:
Scientist: John Dalton
Diagram of Model:
Year of Discovery:
Name of Model/Theory:
Brief Explanation of Experiments Leading to Discovery:
Brief Description of Model:
Scientist: J.J. Thomson
Diagram of Model:
Year of Discovery:
Name of Model/Theory:
Brief Explanation of Experiments Leading to Discovery:
Brief Description of Model:
Scientist: Ernest Rutherford
Diagram of Model:
Year of Discovery:
Name of Model/Theory:
Brief Explanation of Experiments Leading to Discovery:
Brief Description of Model:
Scientist: Niels Bohr
Diagram of Model:
Year of Discovery:
Name of Model/Theory:
Brief Explanation of Experiments Leading to Discovery:
Brief Description of Model:
Scientist: Erwin Schrodinger & Louis de Broglie
Diagram of Model:
Year of Discovery:
Name of Model/Theory:
Brief Explanation of Experiments Leading to Discovery:
Brief Description of Model: