Last modified: Wed 08/03/2016 09:27:26 am
BCE

It is OK to use your textbook, but if you can answers the questions without it that is OK too.

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Answer all of the questions below. If you do not know an answer enter CNA. However, it will help me the most if you answer each question with your best intuition/idea about what would be a reasonable answer.


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This BCE uses a video prepared from an applet that depicts the Bohr model of the hydrogen atom, from the Physics 2000 website at the University of Colorado.

For this Before Class Exploration you will need to watch this movie of the animation.

 

1a. What color is the nucleus in the animation?

b. What color is the electron in the animation?

2. 'Play' with the video for a moment. How many different orbits can the electron occupy (are allowed) in this animation?

orbits

3. (You may need to rewind the video.) Be sure the electron is in the first orbit, the orbit closest to the nucleus. Observe what happens when the mouses clicks on the second orbit. When the mouse clicks in the second orbit from the nucleus something happens just before the electron 'moves' to that orbit. What happens? (Use terms like atom, photon, electron, and energy level )

4. (You may need to rewind the video.) Be sure the electron is in the 2nd orbit. Observe what happens just before the electron 'moves' from the 2nd orbit to the first orbit. What happens? (Use terms like atom, photon, electron, and energy level )

5. (You may need to rewind the video.) Be sure the electron is in the first orbit, the orbit closest to the nucleus. Observe what happens when the mouse clicks on the third orbit from the nucleus. When the mouse clicks in the third orbit from the nucleus something happens just before the electron 'moves' to that orbit. What happens? (Use terms like atom, photon, electron, and energy level )

6. When electron is in the first orbit what must happen for the electron to move to an orbit further from the nucleus?

 

7. When an electron is in an orbit far from the nucleus, what must happen for the electron to move to an orbit closer to the nucleus?

 

8. Is there anything about the questions that you feel you do not understand? List your concerns/questions.

9. If there is one question you would like to have answered in lecture, what would that question be?