In a salt crystal, the distance between adjacent sodium and chloride ions is 2.82 angstroms. what is the force of attraction between the two singly charged ions

-2.89×N

Explanation:

solution

sodium is + ion q1 =  1.602×

chloride is - ion q2= -1.602×

According to coulomb force of attraction

                           F = k * q1 * q2 / d2...........(1)

where,

k=-9×

distance between sodium and chloride ion d2=2.82×

putting all these values k,q1,q2,d2 in eq (1) and solve then we get,

                                    F=  -2.89×N

Note:

Negative sign indicates the force is attractive

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