Assignment 10/6/2006
Homework for next Tuesday, October 10th:
If you have not done so already (and why not?!) make element flash cards for the first twenty elements, with #s of protons, neutrons, electrons (or atomic mass and number from which you can derive the above) and each element's abbreviation. On the back of the card sketch a 'solar system' style diagram (Bohr model) of the electron configuration for each element. USE THESE CARDS TO MEMORIZE THE FIRST 20 ELEMENTS!!!
Here are some links for additional information about electron configurations:
(look on the left side for the electronic data link for each element)
Also, you will need to have done the Friday assignment to read in SI pg 561-564 about Nuclear Chemistry and work the four problems on pg 564 under "Check and Explain."
Assignment made on Friday, due Tuesday, October 10th:
(1) Read and highlight the “Discovering the Atom and Subatomic Particles” packet handed out in class today. Many of the scientists you’ll be researching for the assignment below are discussed in the packet. Also, keep track of the single sheet handout with Table 3.2 on it. Finished reading the packet? OK, then next...
(2) Make a timeline on 8 1/2 “ by 11” paper (can be multiple sheets) for the following scientists and atomic ‘groupies’:
Democritus, John Dalton, J.J. Thomson, Niels Bohr, Ernest Rutherford, James Chadwick, Antoine Lavoisier, Antoine Becquerel, Marie Curie, Joseph Proust, Henry Cavendish, Amadeo Avogadro, Stanislao Cannizzaro, Robert Millikan, Aristotle,
Robert Boyle
Note the following on the timeline:
• name and lifespan of the person
On a separate sheet of paper, write down the contribution of each person. If it's a famous experiment (like the gold foil experiment) you should be able to draw a diagram and explain it. You will need to know this 'stuff' for the exam—
—which is coming up soon!
Shown above: the data from today’s demonstration. So, what would you do next?
Have a good LONG weekend!
Friday, October 6, 2006