The charge on a single electron is 1.6 x 10-19 C. 1 coulomb of charge (1 C) contains 6.25 x 1018 electrons.
Use these conversion factors to determine how many excess or missing electrons on the charged object.
An object has an excess charge of −1.6 × 10−17 C. How many excess electrons does it have?
Answer: ____________ electrons
