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Ionic radius Knowledge-Based Practice

Chemistry · The Periodic Table · Chemistry · Periodic Trends

1 Chemistry practice questions on Ionic radius. Questions that assess core concepts and understanding.

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Questions

  1. 1.

    Which of the following correctly lists the isoelectronic ions Al3+\text{Al}^{3+}, Mg2+\text{Mg}^{2+}, F−\text{F}^{-}, and O2−\text{O}^{2-} in order of increasing ionic radius?

    • A) O2−<F−<Mg2+<Al3+\text{O}^{2-} < \text{F}^{-} < \text{Mg}^{2+} < \text{Al}^{3+}
    • B) Al3+<F−<Mg2+<O2−\text{Al}^{3+} < \text{F}^{-} < \text{Mg}^{2+} < \text{O}^{2-}
    • C) F−<O2−<Mg2+<Al3+\text{F}^{-} < \text{O}^{2-} < \text{Mg}^{2+} < \text{Al}^{3+}
    • D) Al3+<Mg2+<F−<O2−\text{Al}^{3+} < \text{Mg}^{2+} < \text{F}^{-} < \text{O}^{2-}

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