Question

Degine radioactivity of a radioactive substance

Answer 1

Answer.

A radioactive substance is unstable and produces dangerous kinds ofradiation. ... Radioactive substancesare continually producing three kinds of dangerous radiation: alpha particles, beta particles and gamma rays. These types of radiation are invisible to the naked eye, and so you don't see a green glow.

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Answer 2

radioactive material like polonium,thorium and Uernium in which Spontaneous discharge the radiation like alpha ,beta and gamma radiation....