Comment on the colour and magnetic behaviour of dipositive ions of group 2 elements.

Explanation

To address the question regarding the color and magnetic behavior of dipositive ions of group 2 elements, we can follow these steps:

### Step-by-Step Solution:

1. **Identify Group 2 Elements**:
The group 2 elements include Beryllium (Be), Magnesium (Mg), Calcium (Ca), Strontium (Sr), and Barium (Ba).

2. **Electronic Configuration**:
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