WHAT IS RADIOACTIVITY?
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a phenomenon in which there is a spontaneous emission of radiation from a substance is known as radioactivity
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Radioactivity is the spontaneous emission of radiation in the form of particles or high energy photons resulting from a nuclear reaction. ... For example, a light bulb may emit radiation in the forms of heat and light, yet it is not radioactive.
Explanation:
Radioactivity is simply when very small particles in objects emit energy or smaller particles. The energy that is produced can result in cancer, serious environmental damage, or helpful technologies. There are different degrees of radioactivity, and different exposures increase the harm it can cause.
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