Which property of the alkaline earth metals i | vedclass

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(A) As we move down the group of alkaline earth metals ($Be$ to $Ba$),the atomic size increases.$1$. Ionization energy decreases down the group due to

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Solubility of their hydroxides in water

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(A) As we move down the group of alkaline earth metals ($Be$ to $Ba$),the atomic size increases.$1$. Ionization energy decreases down the group due to the increase in atomic size.$2$. Electronegativity decreases down the group.$3$. The solubility of sulphates of alkaline earth metals decreases down the group because the lattice energy decreases less rapidly than the hydration energy.$4$. The solubility of hydroxides of alkaline earth metals increases down the group because the lattice energy decreases more rapidly than the hydration energy as the size of the cation increases.

Which property of the alkaline earth metals increases with their atomic number?

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