Radioactivity
Legal definition for Indian law research
Definition
a form of instability which is a property of the atomic nuclei of certain isotopes which causes a spontaneous change in the structure of the nucleus accompanied by emission of energetic radiation The radiation emitted is usually sufficient to cause ionization in matter through which it passes and is therefore called ionizing radiation The radiation emitted by most radioactive substances is one of three types alpha rays beta rays or gamma rays Some chemical elements have no stable isotopes and these are referred to as radioactive elements and the element itself is said to possess radioactivity
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