What is radioactivity ? Explain with type and example?

or:What is radioactivity ? Explain with type and example?or:radioactive substances, or the radiation emitted by alpha particles, beta particles and g

or:What is radioactivity ? Explain with type and example?

or:radioactive substances, or the radiation emitted by alpha particles, beta particles and gamma rays.

or:Radioactivity defined as the spontaneous emission of particles (alpha, beta, neutron) or radiation (gamma, K capture), or both at the same time, from the decay of certain nuclides that these particles are, due to an adjustment of their internal structure.Radioactivity can be natural or artificial. In natural radioactivity, the substance already has radioactivity in the natural state. In artificial radioactivity, the radioactivity has been induced by irradiation.~ nuclear-energy.net/definitions/radioactivity.html\"Radio\" is a Latin word meaning \"I throw\

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