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jorge3o5 Group Title

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

  • 2 years ago
  • 2 years ago

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  1. jorge3o5 Group Title
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    @bobbylynn u know the answer?

    • 2 years ago
  2. jorge3o5 Group Title
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    ?

    • 2 years ago
  3. jorge3o5 Group Title
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    ask someone :)

    • 2 years ago
  4. bobbylynn Group Title
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    ok i did

    • 2 years ago
  5. jorge3o5 Group Title
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    hmu when you got the answer

    • 2 years ago
  6. Jesusfreak2 Group Title
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    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!

    • 2 years ago
  7. jorge3o5 Group Title
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    so the answer is 2?

    • 2 years ago
  8. Jesusfreak2 Group Title
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    do you have answer choices?

    • 2 years ago
  9. Jesusfreak2 Group Title
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    Oh yeah!

    • 2 years ago
  10. Jesusfreak2 Group Title
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    I think so! Thats my guess!

    • 2 years ago
  11. blues Group Title
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    OK, Jorge, this is very similar to the math question I asked you to post in mathematics a few moments ago...

    • 2 years ago
  12. Jesusfreak2 Group Title
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    But that is pretty much a biology question. well more like Chemistry

    • 2 years ago
  13. Rogue Group Title
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    It's more of a chemistry question than math or biology. 1 half life: 100% ---> 50% 2nd half life: 50% ---> 25% 2 half lives.

    • 2 years ago
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