Wgonzalez Wgonzalez

30-06-2014
Physics

Answered

The half-life of carbon-14 is 5,730 years. How many grams of parent material will remain from a 120-gram sample of carbon-14 after 2 half-lives?

Verified Answer :

30-06-2014

After 2 half lives, one half of one half of the original material remains. That's one fourth.

One fourth of 120 grams is 30 grams remaining.

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