britnwoods britnwoods

09-12-2018
Mathematics

contestada

the half life of a radioactive isotope is the time it takes for a quantity of the isotope to be reduced to half its initial mass. starting with 165 grams of radioactive isotope how much will be left after 4 half lives.

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natasha85 natasha85

09-12-2018

165/2=82.5
82.5/2=41.25
41.25/2=20.625
20.625/2=10.3125
The answer is 10.3125

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