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jorge3o5

  • 3 years ago

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

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  1. jorge3o5
    • 3 years ago
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    @bobbylynn u know the answer?

  2. jorge3o5
    • 3 years ago
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    ?

  3. jorge3o5
    • 3 years ago
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    ask someone :)

  4. bobbylynn
    • 3 years ago
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    ok i did

  5. jorge3o5
    • 3 years ago
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    hmu when you got the answer

  6. Jesusfreak2
    • 3 years ago
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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!

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

  8. Jesusfreak2
    • 3 years ago
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    do you have answer choices?

  9. Jesusfreak2
    • 3 years ago
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    Oh yeah!

  10. Jesusfreak2
    • 3 years ago
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    I think so! Thats my guess!

  11. blues
    • 3 years ago
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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...

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

  13. Rogue
    • 3 years ago
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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.

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