what is radioactivity,half life oa a radio active element,artificial transmutation,nuclear fussion and fission

Question

bidding energychain reaction

Answer 1

radioactivity is the spontaneous emission of radiation by an elements.such elements are called a radioactive elements.e.g uranium

half life of a radioactive element is tghe time take for the half of the total number of atoms in a given sample of the element to decay.

artificial transmutation is the transforming of one element into another by means of particle bombardment.

nuclear fission is the process whereby heavy nucleus is split into two or more lighter nuclei, with a release of energy and radiation

nuclear fussion is the process whereby teo or more light nuclei unite to form a heavier nucleus with a release of energy and radiation.

bindding energy is the energy released during the formation of a nucleus by it's constituents.

chain reaction is a succession of nuclear fissions in which excess neutrons produced by each fission cause further fission in other nuclei.