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RANE

  • one year ago

"why is not possible to predict when any particular radioactive nucleus will decay?"

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  1. RANE
    • one year ago
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    @UnkleRhaukus @amistre64 @ParthKohli

  2. RANE
    • one year ago
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    @thomaster

  3. RANE
    • one year ago
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    @ganeshie8 @dan815

  4. RANE
    • one year ago
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    i didnt form this question,its in my phys report, and i dont know the answer to it

  5. UnkleRhaukus
    • one year ago
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    Perhaps there is some missing context

  6. RANE
    • one year ago
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    the question asked is "why is not possible to predict when any particular radioactive nucleus will decay?"

  7. UnkleRhaukus
    • one year ago
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    Ah, that is a bit different.

  8. RANE
    • one year ago
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    u there?

  9. UnkleRhaukus
    • one year ago
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    Radioactive decay is probabilistic in nature. If you have a large number of radionuclides you can make probabilistic predictions about the group- in one half-life about half of the nuclides will have decayed. But you cannot tell when any individual will decay,

  10. RANE
    • one year ago
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    y cant u tell when any individual will decay?

  11. UnkleRhaukus
    • one year ago
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    because they dont all decay at the same time

  12. dan815
    • one year ago
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    so you want to know why a nuclues never decays?

  13. RANE
    • one year ago
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    "why is not possible to predict when any particular radioactive nucleus will decay?"

  14. thomaster
    • one year ago
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    because it's random when they will decay?

  15. UnkleRhaukus
    • one year ago
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    Consider; i have ten coins, i flip them all over, if a tail that coin is removed, if a head the coin can be re flipped, every minute i re-flip all the coins that were heads last time, . You could do some statical analysis and predict that the game will last less then 10 minutes - most of the time. however sometimes, all coins will be tails on the first flip, and sometimes, all the coins continue to flip heads and the game never ends

  16. UnkleRhaukus
    • one year ago
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    Making predictions about the coins game is similar to making predictions about the radionuclides, The data used to make the predictions is probabilistic data. [this analysis is very different to trying to determine the behaviour of a single coin, (that would require knowing trajectories, velocities and dynamics.)(we dont have this data)]

  17. RANE
    • one year ago
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    thank u so much

  18. UnkleRhaukus
    • one year ago
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    did you try the game, do you have ten coins,? i took me exactly ten flips, but that was just lucky

  19. RANE
    • one year ago
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    um.. no, i didnt try it becoz i'm busy with other q's of the report bt i will do it at sometime

  20. amistre64
    • one year ago
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    as far as i can recall, the particles in question are soo small that any attempt to measure them affects their situation.

  21. RANE
    • one year ago
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    wht????

  22. RANE
    • one year ago
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    this time can u pls explain using the example of dice

  23. UnkleRhaukus
    • one year ago
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    do you have some dice to roll?

  24. RANE
    • one year ago
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    yes

  25. RANE
    • one year ago
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    can u ist explain the q then give example

  26. RANE
    • one year ago
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    "why is not possible to predict when any particular radioactive nucleus will decay?"

  27. UnkleRhaukus
    • one year ago
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    ok , well im gonna roll eight dice, and if one of them lands on a 1, it take it aside, every thing else, i re-roll , this repeats. how long does the game last?

  28. RANE
    • one year ago
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    can u pls explain ist so we have a clue abt whts happening

  29. RANE
    • one year ago
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    explain the q' then examp

  30. RANE
    • one year ago
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    r u there?

  31. UnkleRhaukus
    • one year ago
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    i am hear, but i am not sure what you are asking me

  32. GGfreak
    • one year ago
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    Thnkx for the help don't worry bout it

  33. gleem
    • one year ago
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    A radioactive nucleus is often modeled as a hollow sphere in which there is a small marble. The hollow sphere has a small hole but large enough for the marble to pass through. The marble is considered to be bouncing around in the sphere until after a time it passes through the hole and escapes. consider a piggy bank with a coin that you are trying to shake out. Is it possible to predict when the coin will come out ie. how many shakes will it take to get the coin out? I think not. You can estimate the average number shakes to get the coin out of say 10000 bank by shaking them until a coin comes out and averaging the number of shakes that released a coin. that way if you came across another set of similar bank you could estimate how long it will take to release all the coins. So goes the coin in the bank so goes the radioactive nucleus.

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