Question

what is radioactive decay and how do you find the energy of the emitted particle.

Answer 1

Radioactive decay is a process by which an unstable atomic nuclei losses energy by emitting radiations. Now formula for finding out energy of decayed particles is different in different type of decays. But the basic method that is used is :

Find out the energy released in the reaction by E=∆m(c^2). Here ∆m=mass defect=difference between energy of nucleons of reactant and products.

Now as the initial momentum of the reactants was zero. Write total momentum of products equals to zero. Assuming their masses and velocities.

Then write total kinetic energy of products = E and hence you will be able to obtain velocities and further energies.

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