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  1. #1
    deadskulz's Avatar
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    [attention grabbing title here]

    Suppose you start with 100 grams of the radioactive isotope Carbon-14, which has a half-life of 5,000 years. After 20,000 years, how much parent material will remain and how much daughter material will be produced?

    answers plawks?
    already looked in my bio book and i couldnt find it...


    Quote Originally Posted by Disturbed View Post
    6.25 Grams of parent material left.

    How? Half life of a radioactive material is x. Meaning, every x years the amount of radioactivity will have dropped by 50%. See where this is going? Find the daughter material yourself.

    And mega tons = million tons. He is trolling, that would be 10,000,000,000 pounds. (10 billion.) Now how the fuck would that come out out of 100 grams?
    Last edited by deadskulz; 03-13-2011 at 05:59 PM.

  2. #2
    Puffin's Avatar
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    The title diidnt catch my attention, but yet i clicked just to post this..

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    deadskulz (03-13-2011)

  4. #3
    Saboteur's Avatar
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    5 megatons.



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  5. #4
    deadskulz's Avatar
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    Quote Originally Posted by Saboteur View Post
    5 megatons.
    howd you need that?

    its not required, but im thinking you trollin'.

  6. #5
    Swiftdude's Avatar
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    since when is this bio
    Still love you Giggletron


  7. #6
    deadskulz's Avatar
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    Quote Originally Posted by Swiftdude View Post
    since when is this bio
    since there was radiometric dating :3

    this is freshman bio lol.

  8. #7
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    Quote Originally Posted by deadskulz View Post


    howd you need that?

    its not required, but im thinking you trollin'.
    because 5 megatons is the obvious answer.



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    deadskulz (03-13-2011)

  10. #8
    Ian's Avatar
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    im gonna fail my bio class when i take it next fall

  11. #9
    deadskulz's Avatar
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    Quote Originally Posted by Saboteur View Post


    because 5 megatons is the obvious answer.
    fuck it, im writing that.
    thx

    @NextGen1
    /req close

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    666HiddenMaster666's Avatar
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    Quote Originally Posted by deadskulz View Post


    since there was radiometric dating :3

    this is freshman bio lol.
    Damn my high school freshmen classes are so behind
    All I know is radioactive decay
    Quote Originally Posted by Extravagant View Post
    The problem is that we're people. People are shitty beings, you just gotta keep that in mind.
    "Science is interesting, and if you don't agree you can fuck off." - Richard Dawkins
    "Only two things are infinite, the universe and human stupidity, and I'm not sure about the former." - Albert Einstein

    Quote Originally Posted by Lehsyrus View Post
    Troll nomination. Allah and Muhammad for 1400 years of bullshit.

  13. #11
    deadskulz's Avatar
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    Quote Originally Posted by Ian View Post
    im gonna fail my bio class when i take it next fall
    your an 8th grader?
    o:

    Quote Originally Posted by 666HiddenMaster666 View Post


    Damn my high school freshmen classes are so behind
    All I know is radioactive decay
    i dont even know what the is lol.

  14. #12
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    6.25 Grams of parent material left.

    How? Half life of a radioactive material is x. Meaning, every x years the amount of radioactivity will have dropped by 50%. See where this is going? Find the daughter material yourself.

    And mega tons = million tons. He is trolling, that would be 10,000,000,000 pounds. (10 billion.) Now how the fuck would that come out out of 100 grams?
    Last edited by Disturbed; 03-13-2011 at 05:57 PM.


  15. #13
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    Quote Originally Posted by deadskulz View Post


    fuck it, im writing that.
    thx

    @NextGen1
    /req close
    AHAHAHAHAHA


    do it.



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  16. #14
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    i only learned neutrons, electrons and protons in my high school at 11th grade in chemistry.

    Quote Originally Posted by deadskulz View Post

    your an 8th grader?
    o:

    college freshmen
    Last edited by Ian; 03-13-2011 at 05:57 PM.

  17. #15
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    didnt have radiometric dating in my bio class
    Still love you Giggletron


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