Among `TeF_6,SeF_6` and `SF_6` which is more stable?

Explanation

To determine which of the compounds \( \text{TeF}_6 \), \( \text{SeF}_6 \), and \( \text{SF}_6 \) is more stable, we can analyze the stability based on the size of the central atom and the steric hindrance caused by the fluorine atoms.

### Step 1: Analyze the central atoms
- The central atoms in the compounds are Tellurium (Te), Selenium (Se), and Sulfur (S).
- Sulfur is the smallest among these three elements, followed by Selenium, and then Tellurium.

**Hint:** Consider the atomic size of the central atom and how it affects the bonding with fluorine.

...