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Física">
Em um cristal de cloreto de sodio
A distancia entre dois ions adjacentes NA+ e CL-é de aproximadamente 3×10-¹°m
Supondo que o cristal se encontre no ar, qual o valor da força eletrica entre estes ions
o módulo da carga tanto do NA+ quanto do CL- é Q=1,6×10-¹9c(módulo da carga do eletron) k0=9,0×10 9 N m²/c²
F=k0 Q1 Q2/r²
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