Chemistry, 22.01.2021 17:10 jasminer257
Thorium-227 has a half-life of about 19 days. How much of a 500 g sample of Thorium will remain un-decayed in 19 days?
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Thorium-227 has a half-life of about 19 days. How much of a 500 g sample of Thorium will remain un-d...
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