23. Show that the disintegration energy for + decay is Q = (mP mD ...

23. ••• Show that the disintegration energy for β+ decay is Q = (mP − mD − me)c2 = (MP − MD − 2me)c2

, where the ms represent the masses of the parent and daughter nuclei and the Ms represent the masses of the neutral atoms. [Hint: Count the number of electrons both before and after the decay. They are not the same.]