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dybincka [34]
3 years ago
8

A 400-gram sample of a radioactive nuclide is left to decay for 30 hours. At the end of 30 hours, only 200 grams of the sample i

s left. What is the half-life of the nuclide sample
A) 10 hours
B)1.5 days
C) 30 hours
D) 0.5 hours
Biology
1 answer:
PSYCHO15rus [73]3 years ago
3 0
Half life means when the sample of a nuclide decreases by half in Mass so half of 400 is 200 grams and it took 30 hours to reach that value thus its the half life of the Sample
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