[particles at work] half-life
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Last updated 12:36 PM on 3/14/26
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4 Terms
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Half-life
A radioactive isotope's average time for the number of nuclei of the isotope in a sample to halve.
2
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Count Rate
The number of ionisation events detected every second.
3
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Activity
The number of decay events that occur every second.
4
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Count Rate/Activity Equation (number of unstable nuclei after 'n' half-lives)
initial count rate ÷ 2 to the power of number of half-lives
