Nuclear Fission: It is a nuclear reaction in which the nucleus of an atom splits into two or more smaller nuclei along with the release of energy.

This process is often induced by bombarding the nucleus with a neutron.Requires an external factor, such as a neutron, to initiate the splitting of the nucleus.

It is typically induced under controlled conditions in nuclear reactors or uncontrolled conditions in nuclear explosions.

Involves the breaking apart of a heavy nucleus into two or more lighter nuclei, accompanied by the release of a large amount of energy.

This energy is harnessed for various applications, including power generation in nuclear reactors

.Results in the formation of two or more smaller nuclei, along with neutrons and a release of energy.

Can be controlled and utilized for practical applications, such as electricity generation in nuclear power plants.

Radioactivity: It is the spontaneous emission of particles (such as alpha or beta particles) or electromagnetic radiation (such as gamma rays)

from the nucleus of an unstable atom, resulting in the transformation of the nucleus into a more stable state.It occurs spontaneously in certain isotopes without the need for external factors.

The unstable nucleus decays on its own over time.

Involves the emission of particles or radiation from an unstable nucleus in order to achieve a more stable state.

This process continues until the nucleus reaches a state of stability.

Produces various particles or radiation types depending on the type of radioactive decay (alpha decay, beta decay, gamma decay), leading to the transformation of the nucleus.

Generally not controllable, as it is a spontaneous process. However, the rate of decay for a particular radioactive substance is predictable based on its half-life.