Which one of the following alkaline earth met | vedclass

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(D) In aqueous solutions,the ionic mobility is inversely proportional to the degree of hydration. Smaller ions have a higher charge density,leading to

Vedclass · Accepted Answer

$Sr^{2+}$

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(D) In aqueous solutions,the ionic mobility is inversely proportional to the degree of hydration. Smaller ions have a higher charge density,leading to a larger hydration shell,which decreases their mobility. Among the given ions,$Be^{2+}$ is the smallest and has the highest hydration energy,resulting in the largest hydrated radius and lowest mobility. Conversely,$Sr^{2+}$ is the largest among the options,has the smallest hydration shell,and therefore exhibits the highest ionic mobility.

Which one of the following alkaline earth metal ions has the highest ionic mobility in its aqueous solution?

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