元素�期表中钾元素和钠元素同在一个纵行里它们的原子结构示意图如右所示则钾与钠的化学性质 相似理由是 因为钠原子和钾原子最外层电子数相同 Template




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tomski元素�期表中钾元素和钠元素同在一个纵行里它们的原子结构示意图如右所示则钾与钠的化学性质 相似理由是 因为钠原子和钾原子最外层电子数相同 coloring