I have a fission exam next week, can someone help me with this past paper question:(adsbygoogle = window.adsbygoogle || []).push({});

If you know the masses of two nuclei (A)Z and (A+1)Z, (say masses are (A) and (A+1)) and you know the 'critical fission energy' of (A+1)Z, how do you determine if (A)Z is fissile? if it is not fissile, at what neutron energy would you expect fission to be possible.

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Critical fission energy question

**Physics Forums | Science Articles, Homework Help, Discussion**