Question

What is Radioactivity?

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Answer 1

Answer:

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Explanation:

Radioactivity involves the spontaneous decomposition of an unstable atomic nucleus into a more stable form, in one of three decays: alpha, beta, gamma. The nucleus becomes more stable by releasing excess energy either in the form of particles (alpha and beta) or as a wave.

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Fast Fact: Lead is the heaviest stable element in the periodic table. All heavier elements decay over time.

Answer 2

Radioactivity :---

The phenomenon of emission radioactive ray (i.e. alpha ,beta, Gamma etc) from the nucleus of atom(like uranium (U--235,U---237) ,Duterium etc called radioactivity .

Few facts

Nuclear fission and fusion both are due to readioactivity .

Nuclear reactor which produced large amount of energy is due to phenomenon called Nuclear fission or fusion .