Iron can form two types of inos. Compare the ionic
sizes of the respective ions.

Explanation

To compare the ionic sizes of the two types of iron ions, Fe²⁺ and Fe³⁺, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Ions**:
- Iron can form two types of ions: Fe²⁺ (ferrous ion) and Fe³⁺ (ferric ion).

2. **Understand Ionic Size**:
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