8. Natural and Artificial Radioactivity

 

 

Natural radioactivity:

Emission of radiation due to disintegration of a nucleus through induced processintegration of a nucleus through induced processself integration of a nucleusself disintegration of a nucleus.

Alpha, beta and gammaneutron and positronall the abovenono of the above radiations are emitted.

It is a spontaneousinducedboth spontaneous and inducedeither spontaneous or induced process.

Exhibited by elements with atomic number less than 28more than 82more than 28less than 82.

This cannot be controlledcan be controlled.

Artificial radioactivity:

Emission of radiation due to self integration of a nucleusdisintegration of a nucleus through induced processintegration of a nucleus through induced processself disintegration of a nucleus.

Mostly elementary particles Alpha, beta and gammaneutron and positronall the abovenono of the above are emitted.

It is an spontaneousinducedboth spontaneous and inducedeither spontaneous or induced process.

Exhibited by elements with atomic number more than 82less than 28less than 82more than 28.

This cannot be controlledcan be controlled.