Give the example of Trivalent electronegative ion

Explanation

**Step-by-Step Solution:**

1. **Understanding Trivalent Electronegative Ion**:
- A trivalent electronegative ion is an ion that has a valency of -3. This means that it can gain three electrons to achieve a stable electronic configuration.

2. **Identifying the Example**:
- One common example of a trivalent electronegative ion is the nitride ion.

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