What subject was Chadwick researching?Ģ5. During which war was Chadwick a prisoner of war? What year did he begin his work with Rutherford?Ģ3. Ĭhadwick (and Rutherford) and the Neutron Go to and use the information found there to answer the following questions: 22. Use the following link to draw a diagram of the Bohr model of the atom. what was his “revolutionary idea” about electrons)?Ģ1. How did Bohr modify this model of the atom (i.e. Explain the problem that Bohr described with Rutherford’s model of the atom that had the electrons orbiting the nucleus like the sun around the earth.Ģ0. What was the charge of the nucleus and how much smaller was it, than the atom itself, according to Rutherford?ġ9. What observations during his gold foil experiment lead Rutherford to propose a new model of the atom?ġ8. In what year did Rutherford perform his experiments using alpha particles (Gold Foil Experiment)?ġ7. Ernest Rutherford had been a student of what important scientist?ġ6. Rutherford and Bohr: Go to and use the information found there to answer the following questions: 15. What was the model of the atom he proposed in 1904? What was the nickname of this model? What was the evidence for “bodies much smaller than atoms”?ġ4. In what year did he discover the electron? 13. Thomson’s nationality and his profession?ġ2. Thomson and the Electron: Go to and use the information there to answer the following questions: 11. What are the five components of Dalton’s Atomic Theory? What year did Dalton propose his new atomic theory?ġ0. Go to and use the information there to answer the following questions: 9. What other science was John Dalton interested in that lead him to his view of atomism? What years did John Dalton live? What was his nationality and what was his profession?Ĩ. How were the ideas of these two men received by Aristotle, and what was the result on the progress of atomic theory for the next 2,000 years? How did they use atoms to explain different physical properties?Ħ. What was the “basic idea” about matter that Leucippus and Democritus proposed?ĥ. The 3 subatomic particlesĮarly Ideas About Atoms: Go to and read the section on “Early Greek Ideas” in order to answer the following questions: 4. What is the electrical charge of each particle? 1. Where are each of the three particles located within the atom? 3. What are the three subatomic particles that all atoms are made of? 2. Atom Basics: Go to: and read the “And you thought you were strange” section to answer the following questions (put answers in the table). Webquest: Atomic Theories and Models Answer these questions on your own, USING COMPLETE SENTENCES where appropriate (most of the questions, except tables and drawings).
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