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Q-value and kinetic energy of alpha particle in alpha decay.

  • Thread starter sudipmaity
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  • #1
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Homework Statement


The nuclear masses of parent and daughter nuclei are Mp= 226.025 amu and Md=222.017 amu.Mass of alpha particle is Mα=4.002amu.Find qvalue and kinetic energy of alpha particle emitted for the alpha decay.

Homework Equations


Q=(Mp -Md-Mα)amu...1
Assuming nucleus to be at rest as it is very heavy
Q=Eα(1+ Mα/Md)...2


The Attempt at a Solution


Putting given values in 1 i get Q=5.589MeV (1amu= 931.5MeV)
Substituting this in 2 i get Eα=5.490 MeV.
Have i done this correctly??
 

Answers and Replies

  • #2
18,037
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Thanks for the post! Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post?
 
  • #3
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I think you should take into account the mass of the electrons as well. They are small but they will contribute as well
 

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