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JAMB - Physics (2018 - No. 3)

Natural radioactivity consists of the emission of
α- particles and β-rays
α- particles and X-rays
α- particles, β - rays and y-rays
γ- rays and X-rays

توضيح

Radioactivity is the spontaneous emission of radiation from atomic nuclei. This radiation can consist of alpha, beta, and gamma radiation. 

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