Answer
The initial fragments formed by fission have more neutrons than protons.
Work Step by Step
The initial fragments formed by fission have more neutrons than protons.
Nuclear fission is a process in which nucleus of an atom splits open when it is bombarded with a nucleon and resulting smaller elements are formed.
To explain, why the process has more neutrons than protons, let us consider the example.
For example, consider the following fission:
$$235 \mathrm{U}+n \rightarrow^{141} \mathrm{Cs}+^{93} \mathrm{Rb}+2 n
$$
the number of neutrons in the products is $143,$ and the number of neutrons in the products is $31+56+2=89$
