Figure 2.10 (a) The dependence of repulsive, attractive, and net forces on interatomic separation for two isolated atoms. (b) The dependence of repulsive, attractive, and net potential energies on interatomic separation for two isolated atoms. Force F Potential energy E Attraction Repulsion Repulsion Attraction + ro Eo Attractive force FA Repulsive force FR -Net force FN Interatomic separation r (a) Repulsive energy ER Interatomic separation Net energy EN Attractive energy EA

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