Answer the following question: Write the process of β− decay. How can radioactive nuclei emit β−particles even though they do not contain them ? Why do all electrons emitted during β−decay not have the same energy ?
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Updated on : 2022-09-05
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In β−decay, the mass number A remains unchanged but the atomic number Z of the nucleus goes up by 1. A common example of β−decay is 1532P→3216S+e−+v− A neutron of nucleus decays into a proton, an electron and an antineutrino. It is this electron which is emitted as β− particles. 01n→11p+−10e+v− In β-decay, particles like antineutrinos are also emitted along with electrons. The available energy is shared by electrons and antineutrinos in all proportions. That is why all electrons emitted during β−decay not have the same energy.