Radioactivity.

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Presentation transcript:

Radioactivity

What is Radioactivity? Discovered by Marie Currie Spontaneous emission of radiation by unstable atomic nuclei

What causes Radioactivity? Different isotopes that are less stable Tracers- Radioactive isotopes which can be followed through the steps of a chemical reaction Radioactive uses in medicine: Isotopes are used to treat some diseases or detect medical problems Radiation therapy

Radioactive Elements & Isotopes? Uranium- 235 Iodine- 131 Cobalt- 60 Technetium- 99 Nickel- 63 Radium- 226 Polonium

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