Question

11:15 cb
Question 9 :
The activity of radioelement falls to half of
its initial value in 8 days. The value of
decay constant
1=0.693 day
A=0.08663 per day
1 =0.693 per day
1=0.08663 day
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Answer 1

Answer:

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Answer 2

Answer:

2 days

Explanation:

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