Question

write a short note on radio active substance​

Answer 1

Answer:

Lesson Summary

A radioactive substance is unstable and produces dangerous kinds of radiation. Radioactive substances produce three types of dangerous radiation: alpha particles are the nuclei of helium atoms. They move slowly, don't penetrate the skin, but can cause a lot of damage if swallowed.

Answer 2

Explanation:

Radioactive substances are continually producing three kinds of dangerous radiation: alpha particles, beta particles and gamma rays. ... Radioactive substances produce alpha particles, beta particles and gamma rays.