I need help with two questions:

Question

1) An object can only have a charge that is an integral multiple of the charge on the ___.

Am I correct with "electron" as the answer? or possibly elementary charge?

2) The difference in potential between any two points in a field is the ___ required to move a unit of whatever is affected by the field between the two points.

Is "work" a possibility? Is "energy" better?

Answer 1

electron.
work; or energy both are correct.

Answer 2

1. yes, electron

2. work is what you mean

in a potential field the work done to move from point A to point B is equal to the change in potential energy