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21-08-2021
Chemistry

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a radioactive element has a half-life of 30 days. calculate the mass of the element that remains after 20 days if 100g of the element decays. Also, calculate the decay constant.

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lilianluwisha3 lilianluwisha3

21-08-2021

Answer:

A=Ao(1/2)^t/h

A=(100)(1/2)^20/30

A=63g

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