Why does the solubility of alkaline earth metal carbonates and sulphates in water decrease down the group ?

Explanation

To understand why the solubility of alkaline earth metal carbonates and sulfates in water decreases down the group, we can break down the explanation into several key points:

### Step-by-Step Solution:

1. **Identify the Group**: The alkaline earth metals are located in Group 2 of the periodic table, which includes Beryllium (Be), Magnesium (Mg), Calcium (Ca), Strontium (Sr), Barium (Ba), and Radium (Ra).

**Hint**: Remember that the group number helps identify the elements and their common properties.

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