Atomic Theory

Our next big idea in the chemistry unit is the structure of an atom.  We know that atoms are teeny tiny things that make up all matter, but what makes up an atom?

First, we will be investigating the history of atomic structure.  Each of you has been assigned to learn about a particular theory that has been used to explain the structure of an atom at some point in time.  Once you have become the 'expert' on this theory, you will make a poster and then present it to your class mates.  The key points you need to include in your presentation are
:
     1.  Background information - Who developed this theory?  Where and when did they do their research?  What was their specialty, field of interest, or profession?  Any other interesting facts, accomplishments, etc.
     2.  The actual model - What did this theory say the atom looked like?  Be able to draw a detailed diagram of the model.  How was it different from previous models?
     3.  Supporting evidence (this is the most important part) - Why did they think the atom looked that way?  What test or experiment did they do to back up their theory?  What observations or measurements did they make?

Example - This is a poster I made for the Ancient Greek Philosopher's theory about atoms

Here is the information for each of the theories we will study:

Dalton

Bohr

Nagaoka

Chadwick

Rutherford

Thomson

Phase Changes Gizmo

Instructions for getting started on Monday's class activity.

1.  Use the following link to get to the correct website http://www.explorelearning.com
2.  Click on the green button at the top right side of the page that says 'log-in'
3.  Select the option on the right half of the page that says 'I'm a student, and I have a class code'
4.  Enter the class code for your section.  You should be able to just copy and paste from this page:

     4th : FRZWQKJVVX
     5th : MHDZ9JBH9G
     6th : XRXUBM7HBQ
     7th : GNFFETWBR5

5.  Choose the option 'Register Now to Enroll'
6.  Enter your first and last name, then create a username and password
     *Please make your username something as similar to your given name as possible.
7.  Click on the gizmo called 'Phase Changes'
8.  Click on the picture that says 'Launch Gizmo'
     *When your browser says 'Adobe Shockwave needs your permission to run', click 'Always run on this site'.
     *If it asks you to update Adobe Shockwave Player, click on 'Remind Later'.
9.  Follow the instructions on the hand-out to complete the activity

Link for hand-out