Pre-Class Warm-Up Exercise
Due by 6 AM on May 6, 2008

(Physics 204, Spring 2008)

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Reading: Chapter 20

The atomic mass of Argon 37 (Z=18, N=19) is 36.9668 u, and the atomic mass of Chlorine 37 (Z=17, N=20) is 36.9659 u. Questions:

1. Can Chlorine 37 beta decay to Argon 37 (with emission of an electron)? Give a reason for your answer.

 

 

2. Can Argon 37 beta decay to Chlorine 37 (with emission of a positron)? Again, give a reason.

 

3. Can Argon 37 decay to Chlorine 37 by electron capture? Again -- a reason!

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