Qstnid -Ii-17- During Nuclear Explosion, One Of The Products Is <Sup>90</sup>sr With Half-life Of 28.1 Years. If 1μg Of <Sup>90</sup>sr Was Absorbed In The Bones Of A Newly Born Baby Instead Of Calcium, How Much Of It Will Remain After 10 Years And 60 Years If It Is Not Lost Metabolically. - 04: Chemical Kinetics - Neet-xii-chemistry

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NEET-XII-Chemistry

04: Chemical Kinetics

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#17
During nuclear explosion, one of the products is ⁹⁰Sr with half-life of 28.1 years. If 1μg of ⁹⁰Sr was absorbed in the bones of a newly born baby instead of calcium, how much of it will remain after 10 years and 60 years if it is not lost metabolically.

Ans : Here,

It is known that,

Therefore, 0.7814 μg of ⁹⁰Sr will remain after 10 years.

Again,

Therefore, 0.2278 μg of ⁹⁰Sr will remain after 60 years.