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Which of the following statements are true about Decay rates

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Which of the following statements are true about decay rates and half-life?

True False a large decay constant implies a long half-life

True False in carbon dating, the radioactive isotope of carbon that is used is carbon-12

True False half-life is the time it takes for a radioactive sample to decay away to nothing

True False radioactive nuclei decay over time according to a quadratic decay law

True False a small decay constant means that the isotope has a high activity

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