Worksheet about History of Atomic Models

1. TIMELINE OF THE DEVELOPMENT OF THE ATOMIC MODELS
I. Complete the timeline below by drawing the correct atomic model in this box: ,
writing the name of the scientist in this box: , and indicating the name of the model inside this
shape:
Choices:
CHALLENGE!
Add the following in your timeline by writing the name of the scientist and the year of discovery. Write it in th
correct place in the timeline.
II. Complete the diagram below to describe the latest atomic model.
Joseph John Thomson
John Dalton
Neils Bohr
Ernest Rutherford
James Chadwick
Werner Heisenberg and Erwin Schrodinger
Nuclear Model
Planetary Model/Energy Levels
Electron Cloud/Quantum Mechanical Model
Billiard Ball/Solid Sphere Model
Atom with Neutrons in the Nucleus
Plum Pudding/Bread and Raisin Model
Eugene Goldstein (1885)-
discovered PROTONS.
Robert Millikan (1910)
-discovered the charge of an electron which is
1.60217662 × 10-19 coulombs