A radioactive nucleus emits a beta particle. | vedclass

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(D) During $\beta$-decay,a neutron in the nucleus converts into a proton and an electron (the $\beta$-particle),which is then emitted. The process is

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(D) During $\beta$-decay,a neutron in the nucleus converts into a proton and an electron (the $\beta$-particle),which is then emitted. The process is represented as: $^A_Z X ightarrow ^A_{Z+1} Y + _{-1}e^0 + \bar{
u}$. In this process,the mass number $(A)$ remains constant because the total number of nucleons (protons + neutrons) does not change. However,the atomic number $(Z)$ increases by $1$. Since the mass number $(A)$ is the same for both the parent and daughter nuclei,they are called isobars.

$A$ radioactive nucleus emits a beta particle. The parent and daughter nuclei are

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