The nucleus ^{23}_{11}Ne decays by \beta^{-} emission. Write down | Filo
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Class 12

Biology

Cell: Structure and Functions

Nuclei

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The nucleus  decays by emission. Write down the - decay equation and determine the maximum kinetic energy of the electrons emitted. Given that:

.

Solution: The beta decay equation is as shown.

931.5 MeV

Here, mass defect.

amu

Here, the masses used are masses of nuclei and not of atoms. Note: has been cancelled. 
931.5 MeV MeV.  
The maximum kinetic energy of the electron (max ) = Q = 4.37 MeV.
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