Question

When U-235 splits, it usually emits

 a

three neutrons.

 b

no particles at all.

 c

one neutron.

 d

many electrons.

 e

many protons.

Answer 1

Splitting atoms. 'Fission' is another word for splitting. The process of splitting a nucleus is called nuclear fission. ... For fission to happen, the uranium-235 or plutonium-239 nucleus must first absorb a neutron.