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

[sudipmaity]

Homework Statement

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

Homework Equations

Q=(M_p -M_d-M_α)amu...1
Assuming nucleus to be at rest as it is very heavy
Q=E_α(1+ M_α/M_d)...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??

 

[Greg Bernhardt]

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?

 

[krvajal]

I think you should take into account the mass of the electrons as well. They are small but they will contribute as well