Is this nuclear reaction exothermic or endothermic??

dav1d

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.

Spinnor

First write down the masses of the four nuclei, see

http://www.chem.ualberta.ca/~massspe...mass_abund.pdf

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?

dav1d

I got exothermic, is it correct?