Radioactivity
- Created by: Catherine
- Created on: 27-04-12 18:11
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Topic - Radioactivity
We are exposed to background radiation. Most of it is natural; the rest usually comes from medical sources such as X-rays. Only 1% comes from the nuclear industry. Radiation comes from unstable nuclei. The three types of radiation are:
alpha
beta
and gamma
They are all dangerous, some more than others. Our biggest source of background radiation is radon. It is a gas which comes from the ground. Radon detectors are available and simple measures can remove the gas from houses. Alpha particles are helium nuclei. They are stopped by paper or a…
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