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An increase in the number of protons, when unaccompanied correspondingly by an increase in the number of neutrons, almost always produce an unstable isotope of an element higher on the Periodic Table.
  • Awhen unaccompanied correspondingly by an increase in the number of neutrons, almost always produce 分析该选项
  • Bwhen not accompanied by a corresponding increase in the number of neutrons, almost always produce 分析该选项
  • Cwhen that is unaccompanied correspondingly by an increase in the number of neutrons, almost always produces 分析该选项
  • Dif not accompanied by a correspondingly increased number of neutrons, almost always produce 分析该选项
  • Eif not accompanied by a corresponding increase in the number of neutrons, almost always produces 分析该选项
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正确答案: E

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