Describe the accident at Chernobyl

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• Compare the processes of alpha, beta, and gamma decay in terms of the changes that occur in the nucleus of the radioactive atom (7.4)
• Interpret the meaning of the word radiation, depending on the context (7.4)
• Explain how the radioactive decay of uranium-238 leads to the production of a series of radioisotopes. Also explain why naturally occurring radioisotopes such as carbon-14 and hydrogen-3 are not part of this series. (7.4)
• Describe the accident at Chernobyl and explain why radioactive iodine was released and was hazardous to people (7.5)
• Rank the sources that contribute to your annual dose of radiation, both natural and human-made (7.6)