Why is K+ larger than Ca^2+?

Which of the following ions has the smallest radius: F-, Cl-, K+, Ca2+?

  • Answer:

    F- look at the atoms' placement on the periodic table. F is in the second period everything else is in periods 3 and 4. just that alone will make these much bigger ions than F-

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F- look at the atoms' placement on the periodic table. F is in the second period everything else is in periods 3 and 4. just that alone will make these much bigger ions than F-

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