More metal fluorides are ionic in nature than metal chlorides. Assign appropriate reasons.

Explanation

To understand why more metal fluorides are ionic in nature than metal chlorides, we can analyze the properties of the anions involved and apply Fajans' rules. Here’s a step-by-step solution:

### Step 1: Understanding Ionic and Covalent Character
Ionic compounds are formed when there is a significant difference in electronegativity between the metal and the non-metal, leading to the transfer of electrons. Covalent character, on the other hand, arises when the anion can polarize the cation due to its size and charge.

### Step 2: Analyzing the Anions
In this case, we are comparing fluoride ions (F⁻) and chloride ions (Cl⁻). The key difference between these two anions is their size:
- Fluoride ion (F⁻) is smaller in size compared to the chloride ion (Cl⁻).
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