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wolfgirl

  • 4 years ago

The equation 92U238 -> 90Th234 + 2He4 would represent what kind of nuclear reaction? A. alpha decay B. beta decay C. fusion D. fission

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  1. JamesJ
    • 4 years ago
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    What's the definition of alpha decay and beta decay?

  2. wolfgirl
    • 4 years ago
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    I have no idea. They are types of decay

  3. JamesJ
    • 4 years ago
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    Look up what each of the answers mean. Once you know what they mean, this question will be really easy, easier than the last one.

  4. wolfgirl
    • 4 years ago
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    ok

  5. wolfgirl
    • 4 years ago
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    alpha decay is caused by too many protons and beta decay is caused by too many neutrons

  6. JamesJ
    • 4 years ago
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    No. Alpha decay is when an atom ejects an alpha particle. An alpha particle is two protons and two neutrons. Like this: http://education.jlab.org/glossary/alphadecay.gif Beta decay is when an atom ejects an electron. You look up fission and fusion.

  7. wolfgirl
    • 4 years ago
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    fission produces a lot of energy very quickly. It's useful for heat in power plants that make electricity. Fusion allows scientists a very quick way to give a lot of energy and it's also used for ehat in power plants. It occurs whne two lighter elements combine to make a heavier element

  8. JamesJ
    • 4 years ago
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    Fission is when an atom is bombarded by neutrons causing it to break apart into atoms with lower atomic numbers, like this:

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  9. JamesJ
    • 4 years ago
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    Fusion is what you say it is. Now, given all of that, what kind of nuclear reaction is 92U238 -> 90Th234 + 2He4

  10. wolfgirl
    • 4 years ago
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    fission?

  11. JamesJ
    • 4 years ago
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    Fission? Where are the neutrons coming into the atom? I don't see any neutrons on the LHS of the equation. There's just an atom there.

  12. wolfgirl
    • 4 years ago
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    ok..fusion

  13. JamesJ
    • 4 years ago
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    btw, a Helium nucleus can have two protons and two neutrons.

  14. JamesJ
    • 4 years ago
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    Fusion? Where are two atoms being combined? I only see one atom on the LHS

  15. wolfgirl
    • 4 years ago
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    ok

  16. wolfgirl
    • 4 years ago
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    beta decay?

  17. JamesJ
    • 4 years ago
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    Stop. Think. Read the definitions again.

  18. wolfgirl
    • 4 years ago
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    oh! It's Alpha decay

  19. JamesJ
    • 4 years ago
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    http://outreach.atnf.csiro.au/education/senior/cosmicengine/images/sun/alphadecay.gif

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  20. wolfgirl
    • 4 years ago
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    ok....so am I right?

  21. JamesJ
    • 4 years ago
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    Yes, the reaction of your question is exactly the reaction in the picture I just posted.

  22. wolfgirl
    • 4 years ago
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    ok thanks for helping me, James

  23. UnkleRhaukus
    • 4 years ago
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    \[^{92}U_{238} -> ^{90}Th_{234} + ^2He_4\] So if we have a alpha particle \[^2He_4\] (two protons two neutrons) leaving the reaction the reaction is exhibiting alpha decay

  24. wolfgirl
    • 4 years ago
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    thank you

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