10/29/01, 10/30/01

Read Section 3-4

Answer Questions on Page 119 #’s 1-4 and the bottom questions

 

1.  What changes accompany a nuclear reation?

 

2.  Define radioactivity.  Is all radiation composed of particles? Explain.

 

3.  Describe the force that holds the nucleus together.  Explain why neutrons are the “glue” of the nucleus.

 

4.  Connection-You and Your World:

          Why are gamma rays and not alpha or beta radiation used in treating cancer?

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5.  Write a nuclear equation for the alpha decay of  91Pa.

                                                                            

                                                                                    165

6.  Write a nuclear equation for the beta decay of    61 Pm.

 

                                                                                      150

7.  Write a nuclear equation for the alpha decay for   64Gd.