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=SCIENCE 09 Models of the Atom Wiki Group Assignment=

You get 3 class periods to work on this (Sept 14, 21, 28)

1. Sonia, Shaelyn, Sofia, Megan 2. Ryan, Owen, Palmer, Michael 3. Hannah, Jane, Marissa 4. Ellen, Blayne, Clare, Nicole
 * Groups:**

http://2011modelsa.wikispaces.com/ Is the site where you will be building your Wiki site for your group.

In groups of 4 of your choosing, research the four models of the atom (each group member should do one of the models):


 * Dalton model
 * Thomson model
 * Rutherford model
 * Bohr model of the atom

Each group will build a wiki page on Wikispaces and each student will contribute the section of the page about their model (1 of the 4 listed above).

You can start here for an overview of all four models (also refer to page 152-153 textbook ): []

As you build your Wiki page, consider:


 * Use appropriate scientific terminology when using your model to describe atoms and elements (e.g., mass, charge, electron, proton, neutron, nucleus, atom, molecule, element, compound, neutral, positive, negative, ion, isotope, and periodic table).
 * Include a model or picture to illustrate the concepts involved in the model of the atom (Dalton, Thomson, Rutherford, or Bohr) you are looking at.
 * Draw a picture of how your model would represent the element carbon.
 * Describe the process of how the scientists developed the model. Did they do experiments? Did they consult others who did experiments? Describe the experiments. How many scientists worked on the model (include not just the primary scientist - eg Rutherford - but also mention the contributions of the people they worked with). See page 154 of your text for some names of scientists.
 * Discuss strengths and weaknesses of the model of the atom you are researching. How did your model lead to the next model?
 * Provide examples of technologies that have enhanced, promoted, or made possible scientific research about the structure of the atom (e.g., microscope, cathode ray tube, and mass spectrometer) that helped to develop your model.
 * Each student should provide a reference list for their wiki. Use [|Bibme.org] to properly cite your references.
 * For the group part of your assignment, you should have a summary of how knowledge about matter progressed from the Dalton model through to the Bohr model. Focus on how the shortcomings of one model led to the next model. A timeline would be one way to accomplish this part of the assignment. Finally, mention what model was the successor to the Bohr model and why the Bohr model failed (3-4 sentences).