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Feb10-10, 12:19 PM
P: 119
4) In fusion, the energy is released beause when the two isotopes are initially put together they then release another particle (what type of particle this is varies on the isotopes), which puts them in a high energy state seeing as the energy which was used to bind that particle to the nucleus is no longer needed but still present, they then get rid of the excess energy and go into a lower energy state which is what blows up your cities and makes the sun shine.

In fission the principle of energy release is similar, as in the reaction releases 3 neutrons from the original isotope in addition to the two waste products. Again, the energy which was used to hold the neutrons in place is no longer needed and released.