It should be listed the factors that affect the intensity of radiations from the radioactive element.
- An unstable nucleus emits radiation spontaneously to become stable nuclei by losing energy. This process of emission of radiation by unstable nuclei is known as radioactive decay.
- These emitted radiations may be alpha radiations(
), beta radiations(
) or gamma radiations(
- These unstable nuclei are the nuclei with more than 83 protons and which do not lie within the belt of stability and they are called radioactive element.