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It depends. For nuclei lighter than nickel, fusion usually releases energy while fission requires energy. For nuclei heavier than nickel, fission usually releases energy while fusion requires energy.

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12y ago
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14y ago

Well, yes and no.

The amount of energy released by a single incident of nuclear fission or fusion is quite small. It is not going to boil any water in your kettle.

The amount of energy released by a fission reaction or a fusion reaction is many, many times greater than the amount of energy released in the most energetic chemical reactions.

There are lots and lots of atoms involved in any of these reactions when we use them. If we take something that has only one millionth of the amount of energy it would need to have to be noticed, and we have that thing happen a trillion times in one place at the same time, it can be very noticable.

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12y ago

no they don't fission means growth of cells and bacteria and virus etc...

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12y ago

Yes, of course. Even sciencetists keep finding a way of harnessing the power realeased by nuclear fusion to make electricity.

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Q: Is it true that very small amounts of energy are released by fission and fusion?
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