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Radioactivity [With QUIZZES]

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Radioactivity is the release of energy from the decay of the nuclei of certain kinds of atoms and isotopes. Atomic nuclei consist of protons and neutrons bound together in tiny bundles at the center of atoms. Radioactive nuclei are nuclei that are unstable and that decay by emitting energetic particles such as photons, electrons, neutrinos, protons, neutrons, or alphas (two protons and two neutrons bound together). Some of these particles are known as ionizing particles. These are particles with enough energy to knock electrons off atoms or molecules. The degree of radioactivity depends on the fraction of unstable nuclei and how frequently those nuclei decay.

 

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Course Content

Radioactivity
Radioactivity is the spontaneous decay or disintegration of the nucleus of the atom of an element during which it emits α,  β  or ϒ rays or a combination of any or all the three and energy (or heat).

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