anonymous
  • anonymous
Carbon-14 has a half-life of approximately 5,730 years. How many half-lives have occurred in a sample that contains 25 percent of the original amount of the parent isotope? 1 2 3 4
Biology
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anonymous
  • anonymous
Carbon-14 has a half-life of approximately 5,730 years. How many half-lives have occurred in a sample that contains 25 percent of the original amount of the parent isotope? 1 2 3 4
Biology
jamiebookeater
  • jamiebookeater
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At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

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anonymous
  • anonymous
@bobbylynn u know the answer?
anonymous
  • anonymous
?
anonymous
  • anonymous
ask someone :)

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anonymous
  • anonymous
ok i did
anonymous
  • anonymous
hmu when you got the answer
anonymous
  • anonymous
The half life of carbon 14 is 5700 years. So If a fossil is 5700 years old then half of the carbon-14 is left. I think this may be it! I tried!
anonymous
  • anonymous
so the answer is 2?
anonymous
  • anonymous
do you have answer choices?
anonymous
  • anonymous
Oh yeah!
anonymous
  • anonymous
I think so! Thats my guess!
blues
  • blues
OK, Jorge, this is very similar to the math question I asked you to post in mathematics a few moments ago...
anonymous
  • anonymous
But that is pretty much a biology question. well more like Chemistry
Rogue
  • Rogue
It's more of a chemistry question than math or biology. 1 half life: 100% ---> 50% 2nd half life: 50% ---> 25% 2 half lives.

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