princessclaudia2 princessclaudia2

06-08-2020
Mathematics

contestada

In three years, 30% of a radioactive element decays. Find its half-life. (Round your answer to one decimal place.) yr

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chinomoreno111102 chinomoreno111102

06-08-2020

Answer:5 years

Step-by-step explanation:

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srithana08 srithana08

06-08-2020

Answer:

5 years

Step-by-step explanation:

in three years 30%

so in one year 10%

For half life time- 50%

so half life time years- 5 years..

Answer Link

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