Physics, asked by kritika143soni, 11 months ago

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What is meant by radioactivity? Name two radioactive substances.

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Answers

Answered by MdZidan1437
9

Answer:

Radioactive elements like uranium emit radiations and is called radioactivity

Two such elements are uranium and polonium

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Answered by Anonymous
9

Explanation:

A radioactive substance is unstable and produce dangerous kinds of radiaton..

Radioactive substances are 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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