Radioactivity
Contents
Key Stage 4
Meaning
Radioactivity is the emission of ionising radiation from a sample of unstable isotopes.
About Radioactivity
- The term radioactivity was first coined by Marie Curie who also discovered the elements Polonium and Radium which were radioactive.
- 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.
- Radioactivity is a scalar quantity as it has magnitude but does not have a direction.
Extra Information
References
AQA
- Activity (radioactivity), page 118, GCSE Combined Science Trilogy; Physics, CGP, AQA
- Activity (radioactivity), page 130, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA
- Activity (radioactivity), page 200, GCSE Combined Science; The Revision Guide, CGP, AQA
- Activity (radioactivity), page 46, GCSE Physics; The Revision Guide, CGP, AQA
- Activity of radioisotope definition, page 112, GCSE Physics; Student Book, Collins, AQA
- Activity, pages 100-101, 109, GCSE Physics; Third Edition, Oxford University Press, AQA
- Radioactivity, page 87, GCSE Physics, Hodder, AQA
- Radioactivity, pages 114-120, GCSE Combined Science Trilogy; Physics, CGP, AQA
- Radioactivity, pages 126-132, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA
- Radioactivity, pages 92-111, GCSE Physics; Third Edition, Oxford University Press, AQA
- Radioactivity; detection of, page 96, GCSE Physics, Hodder, AQA
- Radioactivity; detection of, pages 346, 348, GCSE Combined Science Trilogy 1, Hodder, AQA
- Radioactivity; discovery of, page 343, GCSE Combined Science Trilogy 1, Hodder, AQA
- Radioactivity; discovery of, page 93, GCSE Physics, Hodder, AQA
- Radioactivity; effects on the body, page 350, GCSE Combined Science Trilogy 1, Hodder, AQA
- Radioactivity; effects on the body, pages 97, 102-3, GCSE Physics, Hodder, AQA
- Radioactivity; equations, pages 115-117, GCSE Combined Science Trilogy; Physics, CGP, AQA
- Radioactivity; equations, pages 127-129, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA
- Radioactivity; graphs, page 120, GCSE Combined Science Trilogy; Physics, CGP, AQA
- Radioactivity; graphs, page 132, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA
- Radioactivity; half-life, pages 118-120, GCSE Combined Science Trilogy; Physics, CGP, AQA
- Radioactivity; half-life, pages 130-132, GCSE Physics; The Complete 9-1 Course for AQA, CGP, AQA
- Radioactivity; hazards of, pages 97, 102-3, 105, 115, 199, GCSE Physics, Hodder, AQA
- Radioactivity; ionisation, page 345, GCSE Combined Science Trilogy 1, Hodder, AQA
- Radioactivity; ionisation, page 95, GCSE Physics, Hodder, AQA
- Radioactivity; irradiation and contamination, page 105, GCSE Physics, Hodder, AQA
- Radioactivity; irradiation and contamination, page 351, GCSE Combined Science Trilogy 1, Hodder, AQA
- Radioactivity; nuclear decay, pages 93-4, GCSE Physics, Hodder, AQA
- Radioactivity; properties of, pages 346-7, GCSE Combined Science Trilogy 1, Hodder, AQA
- Radioactivity; properties of, pages 96-7, GCSE Physics, Hodder, AQA
- Radioactivity; uses of, pages 104-5, 115, GCSE Physics, Hodder, AQA
Edexcel
- Activity (radioactivity), page 161, GCSE Physics, CGP, Edexcel
- Activity, page 176, GCSE Combined Science; The Revision Guide, CGP, Edexcel
- Activity, pages 53, 55, GCSE Physics; The Revision Guide, CGP, Edexcel
- Radioactivity, measuring, pages 96-97, GCSE Physics, Pearson Edexcel
- Radioactivity; dangers, pages 106-107, GCSE Physics, Pearson Edexcel
- Radioactivity; medical uses, pages 108-109, GCSE Physics, Pearson Edexcel
- Radioactivity; uses, pages 104-105, GCSE Physics, Pearson Edexcel