table salt is made of a crystal structure consisting of sodium ions with a +1e charge and chloride ions with a -1e charge. where e is a elementary charge(1.60218x10 to the power of -19 C) lets just consider 3 ions of of salt and try to calculate the electrostatic force. what is the electrostatic force on one sodium ion A due to the chloride ion marked B and other sodium ion marked C.

assume that the distance between each ion is 280 PM there are 1x10 to the power of 12 picometers in a meter,place the coordinate system on the sodium ion A with positive x being to the right from it. The coulomb constant k is 8.98755x10 to the power of 9 N.m2/C2 and the vacumm permittivity is 8.85419x10 to the power of -12C2/N.m2

A B C

Na cl Na