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k2912382 k2912382
  • 18-01-2017
  • Chemistry
Answered

If you have 20 grams of parent material, and one half-life goes by, how much parent material do you have remaining?

Verified Answer :

WorldCitizen WorldCitizen
  • 28-01-2017

Half-life is generally the time it takes for a substance to loose half of its mass - but its not half of the time it takes the substance to loose all its mass- this is typically a lot longer.

So, after a half life, half of the mass will be gone, that is 20/2=10, 10 grams.

another 10 grams will be remaining also.

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