Give the example of Trivalent electropositive ion

Explanation

**Step-by-Step Solution:**

1. **Understanding Trivalent Electropositive Ion**:
- A trivalent electropositive ion is an ion that has a charge of +3. This means that it has lost three electrons from its outermost shell, resulting in a positive charge.

2. **Identifying an Example**:
- One common example of a trivalent electropositive ion is Aluminium.

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