In both $$\beta-decay$$ processes, the mass number of a nucleus remains same whereas the atomic number Z increases by one in $$\beta-decay$$ and decreases by one in $$\beta^{+}$$ decay. Explain, giving reason.
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In both processes, the conversion of neutron to proton or proton to neutron inside the nucleus which makes difference in mass number as their masses different from one other.
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