Uranium-235 fission fragment pairs

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SUMMARY

The discussion centers on the fission of Uranium-235, specifically identifying the fission fragment pairs when one fragment is Cesium-137. The other fragment, assuming no other products, is Technetium-99, which has 43 protons and 56 neutrons, totaling 99 nucleons. It is confirmed that fission reactions typically release free neutrons, contributing to the chain reaction process.

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Ultimadark
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Hello

I'm working on a report now, and I'm trying to find an answer to the following question (looked for 45 mins on the internet but no clue as to where to find it)

If Uranium-235 undergoes fission and one of the fragments is Cesium-137, which isotope is the other fission fragment?
 
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Assuming there are no other products - how many protons and neutrons are in what is left?
 
99, so I was thinking that maybe it was Technetium-99, but is there a way to be sure? I thought that all fissions had to result in some free neutrons as well as the larger fragments.
 
Ultimadark said:
99, so I was thinking that maybe it was Technetium-99, but is there a way to be sure? I thought that all fissions had to result in some free neutrons as well as the larger fragments.
In general there will be a few neutrons among the fission fragments - that is why there is a chain reaction.
 

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