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2000年物理高考试题(全国卷)第13题是一道与氯化钠有关的填空题,题文如下: 假设在NaCl蒸气中存在由钠离子Na~+和氯离子Cl~-靠静电相互作用构成的单个氯化钠NaCl分子。若取Na~+与Cl~-相距无限远时其电势能为零,一个NaCl分子的电势能为-6.1eV。已知使一个中性钠原子Na最外层的电子脱离钠原子而形成钠离子Na~+所需的能
The 2000 Physics Examination Questions (National Vol.) Item 13 is a blank-filling question related to sodium chloride. The inscription is as follows: It is assumed that the presence of sodium ions Na~+ and chloride ions Cl~- in electrostatic interactions with NaCl vapor Single sodium chloride NaCl molecules. If the distance between Na~+ and Cl~- is infinite, its potential energy is zero, and the potential energy of a NaCl molecule is -6.1 eV. It is known to remove the Na outermost electron of a neutral sodium atom from Na atoms and form sodium ions Na~+