Balancing Reactions Worksheet - Answer Key

 

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  1. Balance the following reactions:
    1.  


    2.  


    3.  


    4.  



     

     

  2. What is a decay series?

    A decay series is when an unstable nucleus has to go through a number of decays in order to reach a stable configuration.
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  4. The isotope 247Bk decays by a series of α particle and β particle emissions, eventually ending up as 207Pb.  In the complete decay series, how many α and β particles are produced?

    10 α particles required.

     

    5 β particles required