After 7 days, a particular radioactive substance decays to half of its original amount. Find the decay rate of this substance.?
回答 (1)
2019-11-10 12:25 am
✔ 最佳答案
Half-life = 7 daysRate constant, k = ln(2) / (Half-life) = ln(2) / (7 days) = 0.099 /day = 9.9% /day
This substance loses 9.9% of its amount per day.
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