Rutherford scattering experiment question (urgent) 1. The problem statement, all variables and given/known data I need to find the value of the electrical force between the alpha particle and the nucleus of the atom at the point of closest approach. Closest approach = 7.27 x 10^-14 m Charge on atom = (79 * 1.60 x 10 ^-19) C initial kinetic energy of alpha particle = 5.00 x 10^-13 J 2. Relevant equations I think you're supposed to use [Epe = (kq1q2)/r] or [Fe = (kq1q2)/r^2] 3. The attempt at a solution (8.99x10^9)(2*1.60x10^-19)(79*1.60x10^-19) ________________________________________ 7.27x10^-14 = 5.00175x10^-13 (wrong answer) Am I trying to solve this right? Need an answer ASAP please! Thank you.