Posted by Alex on Thursday, June 28, 2012 at 12:47am.
Solve for the charge of each ion using the Coulomb equation. That should give you an integral number of the electron charge, e.
That multiple will be the answer to your question.
Related Questions
College Physics - The magnitude of the electrostatic force between two identical...
physics - Two identical positive charges exert a repulsive force of 6.6 ...
physics - When two identical ions are separated by a distance of 4.0×10^&...
PHYSICS II - When two identical ions are separated by a distance of 4.0×10...
PHYSICS II - When two identical ions are separated by a distance of 4.0×10...
Physics - Two insulated charged metallic spheres A & B have their centres ...
College Physics II - Identical isolated conducting spheres 1 and 2 have equal ...
Physics - A charge of 7.00 10-9 C and a charge of -4.50 10-9 C are separated by ...
physics - Two small identical metal spheres, A and B, on insulated stands, are ...
Physics - By what distance must two charges of +2 C and +10 C be separated so ...
For Further Reading