Why does the solubility of alkaline earth metal hydroxides in water increase down the group?

Explanation

To understand why the solubility of alkaline earth metal hydroxides in water increases down the group, we can break down the explanation into several key steps:

### Step 1: Understanding Alkaline Earth Metals
Alkaline earth metals belong to Group 2 of the periodic table, which includes beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), and barium (Ba). Each of these metals forms hydroxides when reacted with water.

### Step 2: Solubility Trend
The solubility of alkaline earth metal hydroxides in water follows this trend:
- Beryllium hydroxide (Be(OH)₂) < Magnesium hydroxide (Mg(OH)₂) < Calcium hydroxide (Ca(OH)₂) < Strontium hydroxide (Sr(OH)₂) < Barium hydroxide (Ba(OH)₂)
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