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10 November, 10:50

Calculate the percent activity of the radioactive isotope iridium-192 remaining after 2 half-lives.

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  1. 10 November, 14:18
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    The percentage activity of radioactive isotope iridium 192 remaining is 25% after 2 half lives. The duration of two half - lives means that iridium-192 undergo decay for two times, that is

    After one half live 50% remains

    After two half live 25%remains
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