It will take 50 minutes for the sample (mercury-210) to decay through 5 half-lives
What is half-life?
Half-life is the time taken for half a material to decay.
How to determine the time
From the question given above, the following data were:
- Half-life (t½) = 10 mins
- Number of half-lives (n) = 5
- Time (t) =?
The time required can be obtained as follow:
t = n × t½
t = 5 × 10
t = 50 minutes
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