Beta Decay

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In beta minus decay, atomic number Z changes by:

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In beta-minus ($\beta^-$) decay, a neutron inside the nucleus is transformed into a proton, an electron (the beta particle), and an antineutrino:
$n 	o p + e^- + \bar{
u}_e$
The resulting nucleus has one more proton than the original, so the atomic number $Z$ increases by 1 ($Z 	o Z+1$), while the mass number $A$ remains unchanged.

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Beta Decay

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