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			July 06, 2008

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You are here : AllRefer.com > Reference > Encyclopedia > Physics > radioactivity
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radioactivity, Physics

Related Category: Physics

radioactivity, spontaneous disintegration or decay of the nucleus of an atom by emission of particles, usually accompanied by electromagnetic radiation. The energy produced by radioactivity has important military and industrial applications. However, the rays emitted by radioactive substances can cause radiation sickness, and such substances must therefore be handled with extreme care (see radioactive waste).

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