Titanium dioxide (TiO₂) has a simple chemical structure. It consists of one titanium atom (Ti) bonded to two oxygen atoms (O). The structure can be represented in two ways:

1. Formula: TiO₂

2. Lewis Structure:

```

O

||

Ti

||

O

```

Note: This is a simplified representation. In reality, titanium dioxide exists in various crystalline forms, each with a more complex arrangement of atoms. The most common forms are rutile and anatase.