Last modified: Sun 01/17/2016 06:59:24 pm
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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1. Which of the subatomic particles (electron, proton or neutron) is transferred (exchanged) or shared when elements combine to form compounds?

2a. Do the Group IA elements (Li, Na, K,...) gain or lose this particle when reacting with a Group VIIA element?

b) For a Group IA element how many of these particles are gained or lost?

c) How many of these particles do the Group VIIA elements gain or lose?

3. Consider the following Figure showing two examples of waves;

a) Which wave (top or bottom) has the longer wavelength?

b) Which wave (top or bottom) has the larger amplitude?

c) Which wave (top or bottom) has the higher frequency?

Before answering questions 4 - 9 view the movie below.

Viewing the atom using a Bohr model (the first model depicted in the movie) and a Quantum Mechanical Model

(NOTE: To play this movie you need the QuickTime Player. If you do not have it go here to get it for your computer (go to the Download link). You can not play QT movies in the Library! Go to PS102 or Dr. G's office and use a computer there.)

 

Based on the Bohr model of the atoms answer the following questions,

4. How would you describe the path of the electron?

5. What can you say about the distance of an electron from the nucleus that follows the path you describe in Q4.

6. Given the location of the electron at a moment in time, can you predict the location of the electron in the next moment based on the path you describe in Q4?

Based on the second part of the movie depicting the quantum mechanical model of the atom, answer the following questions.

7. How would you describe the path of the electron?

8. What can you say about the distance of an electron from the nucleus that follows the path you describe in Q7.

9. Given the location of the electron at a moment in time, can you predict the location of the electron in the next moment based on the path you describe in Q7?

 

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

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