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Is this nuclear reaction exothermic or endothermic?

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Oct22-11, 12:32 PM
P: 65
1. The problem statement, all variables and given/known data

Is this nuclear reaction exothermic or endothermic??
alpha particle + beryllium -> carbon12 + neutron

2. Relevant equations

3. The attempt at a solution

Im not quiet sure which one it is, I don't know what equations to use. Any help would be appreciated.
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Oct23-11, 06:05 PM
P: 1,375
First write down the masses of the four nuclei, see

If the mass on the left is greater then the mass on the right then the missing energy might be in the form of energy?
Nov5-11, 06:13 PM
P: 65
I got exothermic, is it correct?

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