Write a short note : Nuclear fission

Explanation

In a process in which nucleus of a heavy atom (such as uranium, plutonium or thorium) can be split into lighter nuclei when bombarded with low-energy neutrons is called nucler fission. A tremendous amount of energy is released. During this, if the mass of the original nucleus is just a little more than the sum of the masses of the individual products.
The fission of an atom of uranium produces 10 million times energy produced by the combustion of an atom of carbon from coal.
Nuclear fuel releases energy at a controlled rate through self sustaining fission chain reaction in a nuclear reactor designed for electric power generation. The released energy can be used to produce steam and further generate electricity.