Question

why all the three type of rays alpha beta and gamma come out from a radioactive sample through a single radioactive sample obeys a particular decay mode ​

Answer 1

${\bold{\underline{\underline{Answer:}}}}$

• Radioactive Decay : A radioactive decay is the process by which an unstable atomic nucleus loses its energy by radiation such as $\alpha$, $\beta$ and$\gamma$ particles.

• The decay of a radioactive element is not a single stage process the daughter element formed for the decays into some other elements and so on till stable lead is formed .

• In the complete decay scheme ( from the parent element to the stable lead), a few radioactive elements undergo $\alpha$-decay, while others $\beta$-decay. The $\gamma$ -ray is emmited in cases, when the nucleus after an $\alpha$ or a $\beta$-decay is left in the excited state.