Quote:
Originally Posted by versatile_bhutto
if beta partical emits from the nucleous of an atom how does it affects?
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This is called a beta-negative decay, in this type of decay
a neutron is converted to a proton and this is accompanied by the emission of an electron and an antinutrino.
The reason for the increase in atomic number is the conversion of a neutron into a proton (as atomic number is the number of protons in an atomic nucleus)