anonymous
  • anonymous
The equation 92U238 -> 90Th234 + 2He4 would represent what kind of nuclear reaction? A. alpha decay B. beta decay C. fusion D. fission
Chemistry
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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JamesJ
  • JamesJ
What's the definition of alpha decay and beta decay?
anonymous
  • anonymous
I have no idea. They are types of decay
JamesJ
  • JamesJ
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.

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More answers

anonymous
  • anonymous
ok
anonymous
  • anonymous
alpha decay is caused by too many protons and beta decay is caused by too many neutrons
JamesJ
  • JamesJ
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.
anonymous
  • anonymous
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
JamesJ
  • JamesJ
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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JamesJ
  • JamesJ
Fusion is what you say it is. Now, given all of that, what kind of nuclear reaction is 92U238 -> 90Th234 + 2He4
anonymous
  • anonymous
fission?
JamesJ
  • JamesJ
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.
anonymous
  • anonymous
ok..fusion
JamesJ
  • JamesJ
btw, a Helium nucleus can have two protons and two neutrons.
JamesJ
  • JamesJ
Fusion? Where are two atoms being combined? I only see one atom on the LHS
anonymous
  • anonymous
ok
anonymous
  • anonymous
beta decay?
JamesJ
  • JamesJ
Stop. Think. Read the definitions again.
anonymous
  • anonymous
oh! It's Alpha decay
JamesJ
  • JamesJ
http://outreach.atnf.csiro.au/education/senior/cosmicengine/images/sun/alphadecay.gif
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anonymous
  • anonymous
ok....so am I right?
JamesJ
  • JamesJ
Yes, the reaction of your question is exactly the reaction in the picture I just posted.
anonymous
  • anonymous
ok thanks for helping me, James
UnkleRhaukus
  • UnkleRhaukus
\[^{92}U_{238} -> ^{90}Th_{234} + ^2He_4\] So if we have a alpha particle \[^2He_4\] (two protons two neutrons) leaving the reaction the reaction is exhibiting alpha decay
anonymous
  • anonymous
thank you

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