The mass of an electron is 9.109 × 10^−31 kg, and the magnitude of the charge of an electron is 1.602 × 10^−19 C. What is the ratio of the gravitational force to the electrostatic force between two electrons?
4.165 × 10^42.
2.390 × 10^−43.
3.093 × 10^22.
3.233 × 10^−23