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18 August, 13:20

The radii of the sodium and potassium ions are 102 pm and 138 pin. respectively. Which compound has stronger ionic attractions, sodium chloride or potassium chloride?

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  1. 18 August, 13:48
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    Sodium Chloride has stronger ionic attraction than Potassium Chloride.

    Explanation:

    The radius of sodium ion = 102 pm

    The radius of Potassium ion = 138 pm

    From the given data, the radius of sodium ion is smaller than that of potassium ion.

    Hence,

    Due to the smaller size of sodium ion, it will bind with stronger force of attraction with the chloride ion,

    as compared to potassium ion binding with the chloride ion, due to its larger size.

    Hence,

    Sodium Chloride has stronger ionic attraction than Potassium Chloride.
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