Which of the following alkali metal ions has | vedclass

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(C) The ionic mobility of an ion in an aqueous solution depends on its degree of hydration. Smaller ions have a higher charge density,which leads to a

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$Li^{+}$

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(C) The ionic mobility of an ion in an aqueous solution depends on its degree of hydration. Smaller ions have a higher charge density,which leads to a greater degree of hydration. Among the alkali metal ions,$Li^{+}$ has the smallest size and therefore the highest degree of hydration. Due to the large size of the hydrated $Li^{+}$ ion,it moves more slowly through the solution compared to other alkali metal ions. Thus,$Li^{+}$ has the lowest ionic mobility in aqueous solutions.

Which of the following alkali metal ions has the lowest ionic mobility in aqueous solutions?

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