THe question is. How many electrons must be transferred to a body to give it a negative charge of 4.00nC.????/ So going with what I think 4*10^-9/1.602189...*10^-19= =25*10^9. BUT the answer in my book. is 390*10^-9. What am I missing. Is this negative thing screwing me up or is the answer in my book wrong? I Can't find anywhere in my book that helps.