Difference between revisions of "Radioactivity"
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Revision as of 18:24, 9 March 2019
Key Stage 4
Meaning
Radioactivity is the emission of ionising radiation from a sample of unstable isotopes.
About Radioactivity
- The radioactivity of a sample is measured in Becquerels (Bq) which is the number of radioactive decays in a sample per second.
- The radioactivity of a sample depends upon the amount of unstable isotopes in the sample and the half life of the isotope.