1. The problem statement, all variables and given/known data A particular nucleus of the element Plutonium contains 94 protons and 150 neutrons. What is the magnitude of the force from the nucleus on a single electron that is a distance of 0.563x10-12 m from the Plutonium nucleus? So basically this was a homework question that I got wrong, and I'm not entirely sure what the correct answer is. I'm reworking it to study for an exam, but I want to make sure this is right so I don't keep lousing it up! 2. Relevant equations e=1.60x10-19 C and F=kQ/r2 where k is Coulomb's constant 8.99x109 Nm2/C2 3. The attempt at a solution Okay so if there are 94 protons, there should be 94 electrons. (94)(e)=(94)(1.60x10-19 C)=1.5x10-17 C Where I'm getting confused is what charge I should use to find the force? Because 1.5x10-17 C is the charge of all 94 electrons and I need the magnitude of the force of the nucleus on just one electron. I'm not quite grasping this concept. Anyway, if I blindly plug in numbers without really understanding completely what I'm doing here, I get: F=(k(1.5x10-17 C))/(0.563x10-12 m)2 so F=4.27x1017 N Also, how do I type fractions on this forum? I found the button but I'm not sure where to enter my numbers so it works! Thanks!