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Atomic Models Webquest. Introduction. For thousands of years, people have wondered and thought about what makes up the world around us. About 200 years ago, scientists had an idea that all of matter could be broken down into similar, basic particles.
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Introduction • For thousands of years, people have wondered and thought about what makes up the world around us. • About 200 years ago, scientists had an idea that all of matter could be broken down into similar, basic particles. • They named the particle “atom,” which means “indivisible, or not able to be divided.” • Throughout the following 200 years, scientists’ understanding of the atom has changed • More scientific tests to support, refine, or refute atomic models • Advances in technology have allowed scientists to gather more data
Task • You will be assigned to a specific scientist for this webquest and will be given special tasks and resources that can be used to complete the task. You may work with a partner as you gather information and create your project. Next week, you will present your project to the class. • The information you present to the class should include: • Scientist’s name • Time during which the scientist lived and worked • A description of previous understandings of the atom • A description of this scientist’s model of the atom • An explanation of what led to this model
Task, continued Format Your project may take any format that seems appropriate for your scientist and model. Some examples include: • PowerPoint presentation • Art project (of model) and presentation • Scientist portrayal (Dress up and act as if you are the scientist.) Scientists • Dalton • Thomson • Rutherford • Bohr • de Broglie and Shroedinger
Dalton • Step 1: Read page 9 in our textbook. • Step 2: Visit the website http://www.iun.edu/~cpanhd/C101webnotes/composition/dalton.html • Step 3: Visit the website http://dl.clackamas.edu/ch104-04/dalton%27s.htm • Step 4: Visit the website http://library.thinkquest.org/15567/bio/dalton.html • Step 5: Create your project. Use your notes and your text to help you. • Finished early? Play these games: • Atom Basics Quiz • Element Picture Quiz
Thomson • Step 1: Read about Dalton’s model on page 9 in your textbook. • Step 2: Read about Thomson’s model on pages 10 – 12 in your textbook. Take notes as you read. • Step 3: Visit the website http://www.chemheritage.org/discover/online-resources/chemistry-in-history/themes/atomic-and-nuclear-structure/thomson.aspx • Step 4: Visit the website http://www.aip.org/history/electron/jjelectr.htm • Step 5: Create your project. Use your notes and your text to help you. • Step 6: Finished early? Play these games: • Atom Basics Quiz • Element Picture Quiz
Rutherford • Step 1: Read about Dalton’s model on page 9 in your textbook. • Step 2: Read about Thomson’s model on pages 10 & 11. Rutherford was one of Thomson’s students, so Thomson’s work was a large influence on Rutherford. • Step 3: Read about Crookes’ tests and Rutherford’s model on pages 12-15. • Step 4: Visit the website http://www.chemheritage.org/classroom/chemach/atomic/rutherford.html • Step 5: Visit the website http://www.daviddarling.info/encyclopedia/R/Rutherfords_experiment_and_atomic_model.html. Read the sections entitled “Testing the Currant Bun” and “Rutherford’s New Model.” • Step 6: Create your project. Use your notes and text to help you. • Step 7: Finished early? Play the quizzes in Step 6 on the previous page.
Bohr • Step 1: Read pages 12-15 about Rutherford’s model of the atom. • Step 2: Visit the website http://csep10.phys.utk.edu/astr162/lect/light/bohr.html. Read the first section on “The Planetary Model of the Atom.” • Step 3: Visit the website http://abyss.uoregon.edu/~js/glossary/bohr_atom.html. • Step 4: Visit the website http://videos.howstuffworks.com/hsw/5787-niels-bohrs-atomic-model-video.htm and watch the video on atomic models. • Step 5: : Create your project. Use your notes and your text to help you. • Step 6: Finished early? Play these games: • Atom Basics Quiz • Element Picture Quiz
de Broglie and Schroedinger • Step 1: Visit the website http://improbable.org/era/physics/atom.html. Read all the scientists’ ideas. You don’t need to understand Schroedinger’s equation ~ just that he had a mathematical understanding of the atom. • Step 2: Read pages 16-17 in our text. Which ideas most resemble your scientists’? • Step 3: Visit the website http://www.colorado.edu/physics/2000/quantumzone/debroglie.html. Be sure to use the interactive model near the bottom of this page. • Step 4: Visit the website http://www.colorado.edu/physics/2000/quantumzone/schroedinger.html • Step 5: Create your project. Use your notes and your text to help you. • Step 6: Finished early? Play these games: • Atom Basics Quiz • Element Picture Quiz