Which applies to fission? Check all that apply.
a.involves the splitting of nuclei releases large amounts of energy
b.takes place in the Sun releases radiation as a waste product occurs in nuclear power plants and is used to generate electricity
c.plays a role in the production of essentially
d.all elements heavier than helium.

Upward

Explanation:

For charged particles immersed in an electric field:

- if the particle is positively charged, the direction of the force is the same as the direction of the electric field

- if the particle is negatively charged, the direction of the force is opposite to the direction of the electric field

In this problem, we have an electron - so a negatively charged particle - so the direction of the force is opposite to that of the electric field.

Since the electric field is directed downward, therefore, the electric force on the electron will be upward.