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1 October, 17:33

Isotope a has a half-life measured in minutes, whereas isotope b has a half-life of millions of years. which is more radioactive?

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  1. 1 October, 19:48
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    Isotope A is more reactive. The most reactive elements on the periodic table last fractions of a second. The faster it decays the more radioactive it will become. If the isotope decays slowly it means it’s not as radioactive as others that decay faster.
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