What is meant by the chelate effect? Give and example.

Explanation

### Step-by-Step Text Solution:

**Step 1: Define Chelate Effect**
The chelate effect refers to the increased stability of a metal complex that occurs when a chelating ligand binds to a central metal atom in such a way that it forms one or more rings. This effect is primarily observed with bidentate or polydentate ligands, which can attach to the metal at multiple sites.

**Step 2: Explain the Mechanism**
Chelating ligands have multiple donor atoms that can coordinate to a central metal atom. When these ligands bind, they form a stable ring structure with the metal ion. This ring formation leads to a more stable complex compared to complexes formed with monodentate ligands, which bind at only one site.

...