Download Early Atomic Models Objective: Identify and describe

Name:__________________
Early Atomic Models
Date:_____________
Per:____
Objective: Identify and describe the earliest representations of the atom.
1. What did the Greek philosopher Democritus believe matter was composed of?
http://www.chemteam.info/AtomicStructure/AtomicStructure.html
2. The Greek philosophers Aristotle and Democritus did not agree on the
composition of matter. Explain.
http://www.chemteam.info/AtomicStructure/AtomicStructure.html
3. Define the Law of Conservation of Mass, and the Law of Definite Proportions.
http://www.chemteam.info/Equations/Conserv-of-Mass.html
http://www.fact-index.com/l/la/law_of_definite_proportions.html
4. List the 4 major aspects of John Dalton’s model of an atom.
http://antoine.frostburg.edu/chem/senese/101/atoms/dalton.shtml
5. What particle did J.J. Thomson discover in the cathode ray (CRT)?
http://www.aip.org/history/electron/
then enter the exhibit
6. Draw and label J.J. Thomson’s atomic model. What is his model’s nickname?
http://en.wikipedia.org/wiki/Plum_pudding_model
7. Describe, draw, and label Rutherford’s atomic model.
http://www.iun.edu/~cpanhd/C101webnotes/modern-atomic-theory/rutherfordmodel.html
8. What particle did James Chadwick discover? Draw Chadwick’s model.
http://nobelprize.org/nobel_prizes/physics/laureates/1935/chadwick-bio.html
http://users.zoominternet.net/~even/science.html
9. Bohr’s model- Illustrate and explain Bohr’s model
http://www.colorado.edu/physics/2000/quantumzone/bohr.html
Read chapter 2 AND pages 230-231 for class on Wednesday, 3 October 2012.