11+ How To Calculate Net Charge. To calculate the net charge of an atom, you can use a simple equation that compares the number of protons and electrons in the atom or object. (q) is the net charge in coulombs (c), (n) is the number of electrons gained or lost (negative for lost),.

The formula to calculate the net charge (q) is: Enter the electrons gained or lost and the. Formal charge varies when you look at resonance structure.








