Half life and radioisotope dating worksheet answers
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Half-life , in radioactivity , the interval of time required for one-half of the atomic nuclei of a radioactive sample to decay change spontaneously into other nuclear species by emitting particles and energy , or, equivalently, the time interval required for the number of disintegrations per second of a radioactive material to decrease by one-half. The radioactive isotope cobalt , which is used for radiotherapy , has, for example, a half-life of 5. Thus after that interval, a sample originally containing 8 g of cobalt would contain only 4 g of cobalt and would emit only half as much radiation. After another interval of 5.
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half-life | Definition & Facts | Britannica
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5.7: Calculating Half-Life
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Embed an image that will launch the simulation when clicked. Learn about different types of radiometric dating, such as carbon dating. Understand how decay and half life work to enable radiometric dating.