11/6/01,11/7/01

Read Section 4-3

Answer Questions on Page 140 #’s 1-4 and BELOW:

 

1.  What is the difference between a line spectrum and a continuous spectrum?

 

2.  How does the Bohr model account for the line spectrum of the hydrogen atom?

 

3.  What is the Heisenberg uncertainty principle?

 

4. Critical Thinking-Applying Concepts

          You have learned that in attempting to locate an electron, the act of measurement changes the system.  Suppose that you measure the temperature of a cup of hot tea with a cold thermometer.  How does the use of the thermometer affect the reading?  Is this an example of the uncertainty principle? Explain.

 

5.  What did De Broglie derive a mathematical relationship between?

 

 

6.  What happens when radiation is absorbed by hydrogen?

 

 

7.  Why can’t you observe the effects of wave motion for a baseball?