Uranium-235 fission fragment pairs

[Ultimadark]

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?

 

[Borek]

Assuming there are no other products - how many protons and neutrons are in what is left?

 

[Ultimadark]

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.

 

[mathman]

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.